Inventor
Rolf Fischer
Inventor
Heidelberg, DE
Overview
Patents· 251 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds38%
C07DHeterocyclic compounds25%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry14%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
H04NPictorial communication, e.g. television1%
C07BGeneral methods of organic chemistry1%
G06FElectric digital data processing1%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds1%
PatentTitleYear
10,678,844Storage of metadata and images202010,402,445Apparatus and methods for manipulating multicamera content using content proxy201910,078,644Apparatus and methods for manipulating multicamera content using content proxy20189,922,387'Storage of metadata and images'20189,890,113'Method for continuous production of adiponitrile'20189,871,994'Apparatus and methods for providing content context using session metadata'20188,841,445'Process for preparing purified caprolactam from the Beckmann rearrangement of cyclohexane oxime'20148,772,527'Process for isomerization of cis-2-pentenenitrile to 3-pentenenitriles'20148,383,866'Process for preparing diols by hydrogenating a carboxylic acid-comprising mixture by means of cobalt-comprising catalysts'20138,183,411'Process for preparing 6-hydroxycaproic esters'20127,875,740'Iron-containing material suitable for use as hydrogenation catalyst'20117,501,047'Method for purifying caprolactam'20097,385,073'Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof'20087,351,311'Method for purifying tetrahydrofuran by distillation'20087,307,040'Method for the selective production of tetrahydrofuran by hydrogenating maleic acid anhydride'20077,271,299'Two-stage method for producing butanediol with intermediated separation of succinic anhydride'20077,230,141'Method for producing toluol derivatives'20077,227,029'Method for the continuous production of N-methyl-2-pyrrolidone (NMP)'20077,217,818'Purification of caprolactam'20077,217,847'Method for the production of optically active 2-amino 2-chloro, 2 hydroxy or 2-alkoxy-1-alcohols'20077,217,679'Catalytic coating for the hydrogenation of maleic anhydride and related compounds to give γ-butyrolactone, tetrahydrofuran and derivatives thereof'20077,214,641'Catalyst and hydrogenation of carbonyl compounds in the liquid phase using the catalyst'20077,193,091'Method for the simultaneous production of tetrahydrofurans and pyrrolidones'20077,172,989'Catalytic hydrogenation over rhenium-containing catalysts supported on activated carbon'20077,169,958'Method for the production of 1,4- butane-diol by combined gas-phase and liquid-phase hydrogenation'20077,164,031'Method for the production of 2-pyrrolidone'20077,154,011'Method for the production of 1,4- butanediol'20067,115,781'Iron-containing oxidic material suitable for use as hydrogenation catalyst precursor'20067,091,153'Hydrogenation catalyst'20067,064,239'Preparation of 1,6-hexanediol'20067,041,752'Catalyst and method for the production of polytetrahydrofuran'20066,992,226'Single-stage method for producing toluene derivatives'20066,972,075'Method for removing 6-aminocapronitrile from mixtures that contain 6-aminocapronitrile, adipodinitrile and hexamethylenediamine'20056,958,404'Method for the hydrogenation of maleic anhydride and related compounds in a fluid bed reactor'20056,906,228'Method for catalytic hydrogenation on rhenium-containing active carbon carrier catalysts'20056,905,997'Method for generating catalysts'20056,896,772'Method for separating ammonia from solutions containing caprolactam and ammonia'20056,888,011'Porous catalyst for the hydrogenation of maleic anhydride to tetrahydrofuran'20056,878,798'Method for producing a polymer, using caprolactam'20056,870,014'Catalyst and method for producing polytetrahydrofurane'20056,852,669'Hydrogenation catalyst'20056,831,182'Method for the hydrogenation of maleic anhydride and related compounds in two serial reaction zones'20046,828,464'Preparation of cyclopentenones'20046,828,457'Method for reducing the content of an unsaturated amine in a mixture containing an amine and a nitrile'20046,815,527'Continuous method for producing polyamides from aminonitriles'20046,815,388'Method for activating passivated iron'20046,765,118'Method for the production of alcohols on rhenium-containing activated charcoal supported catalysts'20046,730,800'Method for the production of tetrahydrofuran'20046,716,937'Method for the single-step production of polytetrahydrofuran and tetrahydrofuran copolymers'20046,686,465'Preparation of cyclic lactams'20046,683,177'Process for producing caprolactam'20046,683,178'Preparation of cyclic lactams'20046,683,179'Preparation of caprolactam'20046,683,180'Method for the production of caprolactam'20046,677,449'Preparation of caprolactam'20046,521,763'Method for producing gamma-butyrolactone'20036,462,220'Method for simultaneous preparation of 6-aminocapronitrile and hexamethylene diamine'20026,441,110'Method for producing halogen-free reactive polyisobutene'20026,433,192'Method for producing mixtures of 1,4-butanediol, tetrahydrofuran and -butyrolactone'20026,433,229'Method of producing cyclic, , -unsaturated ketones'20026,429,339'Method for producing cyclopentanone'20026,426,438'Method for producing 1,6-hexanediol and 6-hydroxycaproic acid or their esters'20026,407,294'Method for producing 1,6-hexanediol'20026,387,224'Method for distilling mixtures containing butanediol'20026,384,154'Preparation of halogen-free, reactive polyisobutene'20026,362,332'Coproduction of a cyclic lactam and a cyclic amine'20026,362,333'Method for simultaneously producing a cyclic lactam and a cyclic amine'20026,359,108'Method for polymerizing cyclic ether'20026,359,178'Method for producing hexamethylene diamine'20026,350,924'Method for producing 1,4-butanediol'20026,348,630'Method for purifying hexamethylenediamine in mixtures of hexamethylenediamine and an unsaturated cyclic imine'20026,346,641'Method for simultaneous production of 6-aminocapronitrile and hexamethylenediamine'20026,316,640'Preparation of tetrahydrofuran'20016,316,659'Method for producing cyclopentanone and cyclopentene-1-carboxylic acid and their esters'20016,297,394'Iron-based catalyst for hydrogenating alpha-, omega-dinitriles'20016,284,932'Method for producing alcohols containing cycloaliphatic groups'20016,278,023'Method for producing aliphatic alpha-, omega-diamines'20016,265,602'Method for hydrogenating aliphatic alpha-, omega-dinitriles'20016,255,521'Method for producing aliphatic alpha, omega-amino nitriles'20016,251,229'Process for the separation of 2-aminomethylcyclopentylamine from a mixture containing hexamethyldiamine and 2-aminomethylcyclopentylamine'20016,245,948'Preparation of tetrahydrofuran from dialkoxybutenes'20016,222,033'Method for producing cyclic lactams'20016,222,059'Process for the manufacture of aliphatic alpha, omega amino nitriles'20016,211,401'Process for preparing polytetrahydrofuran'20016,207,851'Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine'20016,204,417'Method for producing aliphatic alcohols'20016,169,189'Process for preparing tetrahydrofuran from dialkoxybutenes'20016,147,208'Process for simultaneously preparing caprolactam and hexamethylene diamine'20006,139,693'Method for obtaining hexamethylene diamine from mixtures containing hexamethylene diamine'20006,140,545'Preparation of alcohols'20006,121,481'Process for preparing 6-aminocapronitrile'20006,114,567'Preparation of aliphatic alpha, omega-aminonitriles'20006,110,856'Catalysts suitable for preparing aliphatic alpha-, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles'20006,111,147'Process for preparing polytetrahydrofuran and derivatives thereof'20006,103,941'Preparation of 1,4-butanediol'20006,103,939'Process for the preparation of 1,4-butanediol monoethers'20006,093,857'Preparation of cyclopentanols'20006,080,883'Method of simultaneously producing 6-aminocapronitrile and hexamethylenediamine'20006,048,997'Manufacturing process for 6-aminocapronitrile'20006,043,338'Method of producing polyoxytetramethylene glycol'20006,008,418'Process for preparing 1,6 hexanediol with a level of purity over 99%'19996,002,027'Preparation of 1,2-butylene oxide'19995,981,769'Process for preparing 1,6- hexanediol and caprolactone'19995,977,417'Preparation of 1,4-butanediol'19995,965,751'Process for hydrogenation of dihydrofurans to give tetrahydrofurans'19995,952,533'Method of producing 1,6-hexane diol from epoxybutadiene'19995,951,829'Separation of heteropoly compounds from polyethers, polyesters and polyether esters'19995,948,921'Method for the selective hydrogenation of vinyl oxirane to butylene oxide'19995,945,571'Preparation of 1,4-butanediol'19995,945,575'Method of producing reactive halogen-free, polyisobutene'19995,939,590'Tetrahydrofuran/but-2-yne-1, 4-diol copolymers containing C-C triple bonds'19995,905,161'Regeneration of catalyst used in the preparation of 3,4-epoxy-1-butene'19995,905,159'Method of producing 1,4-butanediol and tetrahydrofuran from furan'19995,874,607'Coproduction of 6-aminocapronitrile and hexamethylenediamine'19995,869,707'Preparation of 1,2-butylene oxide'19995,827,938'Preparation of amines and aminonitriles'19985,824,769'Polyether, polyester and polyether ester purification process'19985,808,114'Preparation of epoxides by means of aromatic peroxycarboxylic acids'19985,801,268'Preparation of aliphatic alpha omega-aminonitriles'19985,801,267'Preparation of aliphatic alpha, omega-aminonitriles'19985,789,621'Preparation of amines and aminonitriles'19985,783,711'Process for the preparation of heterocyclic aldehydes'19985,773,648'Preparation of polytetrahydrofuran'19985,767,329'Purity of 1,6-hexanediol'19985,763,676'Preparation of aromatic aldehydes'19985,756,808'Preparation of aliphatic, alpha omega-aminonitriles'19985,741,888'Removal of heteropoly compounds from polyethers, polyesters and polyether esters'19985,739,375'Methylation of organic compounds'19985,717,090'Simultaneous preparation of caprolactam and hexamethylenediamine'19985,714,638'Preparation of polyoxyalkylene glycol monoether of tert-butyl alcohol and product'19985,693,793'Preparation of caprolactam from 6-aminocapronitrile'19975,679,869'Preparation of aldehydes'19975,659,068'Preparation of polyoxyalkylene glycol monoesters of monocarboxylic acids'19975,646,307'Preparation of .gamma.-butyrolactone'19975,641,857'Preparation of polytetrahydrofuran'19975,618,954'Preparation of 3,4-epoxy-1-butene'19975,606,081'Preparation of cyclic ether ketones'19975,589,600'Preparation of cyclohexene by partial hydrogenation of benzene'19965,580,994'Preparation of tetrahydropyran-4-carboxylic acid and its esters'19965,561,217'Preparation of polyether glycols'19965,536,854'Preparation of 2-methyl-1,4-butanediol and 3-methyltetrahydrofuran'19965,532,386'Catalytic process for eliminating carboxylic ester and acyl groups from organic compounds'19965,527,946'Preparation of aliphatic alpha, omega-aminonitriles'19965,512,697'Preparation of aliphatic alpha, omega-aminonitriles'19965,508,465'Preparation of aliphatic alpha, omega-aminonitriles in the gas phase'19965,496,941'Process for continuous purification of crude caprolactam prepared from 6-aminocapronitrile'19965,496,958'Preparation of 5-vinylpyrrolidones'19965,475,158'Preparation of cycloalkanols'19955,466,831'Preparation of 3-(2-acyloxyethyl)-dihydro-2(3H)furanones'19955,463,079'Preparation of five-membered nitrogen heterocycles'19955,453,516'Preparation of 5-membered ring heterocycles'19955,453,535'Preparation of .alpha.,.omega.-dicarboxylic acid diesters'19955,436,335'Preparation of 2,6-dimethylmorpholine from N-(2-hydroxypropyl)-2,6-dimethylmorpholine'19955,434,273'Preparation of N-substituted 2-pyrrolidones'19955,416,240'Preparation of poloxy-alkylene glycols'19955,414,097'Purification of esters of tetrahydro-pyran-4-carboxylic acid'19955,414,143'Preparation of polyoxyalkylene glycol monoethers of monohydric alcohols'19955,412,120'Preparation of carboxylic esters'19955,395,959'Adjustment of the average molecular weight of polyoxyalkylene glycols and polyoxyalkylene derivatives in the heteropolyacid-catalyzed polymerization of cyclic ethers and/or acetals with ring cleavage'19955,391,771'Hydrogenation of citric acid'19955,391,734'Preparation of N-(2-hydroxypropyl)-2,6-dimethylmorpholine'19955,387,701'Preparation of 4-hydroxymethyltetrahydropyran'19955,382,740'Continuous production of cyclohexene from cyclohexyl esters'19955,371,297'Preparation of aldehydes'19945,371,242'Preparation of products of the reduction of 4-hydroxybutyric acid derivatives'19945,371,246'Preparation of tetrahydropyran-4-carboxylic acid and esters thereof'19945,350,863'Preparation of 3-(2\'-oxyethyl)dihydro-2(3H)furanones'19945,342,488'Separation of 1,4-butanediol from hydrogenation mixtures'19945,286,875'Preparation of 5-hydroxyethylpyrrolidones'19945,276,165'Preparation of N-substituted lactams'19945,258,555'Synthesis of cycloalkanols'19935,189,182'Preparation of 5-methylbutyrolactone'19935,162,552'Preparation of 4-acetals of butene-1,4-dial and novel acetals of butene-1,4-dial'19925,157,127'Preparation of N-substituted pyrrolidones'19925,144,061'Preparation of alkenecarboxylic esters'19925,099,074'Process for the preparation of polyether glycols'19925,097,077'Purification of heteropolyacid-containing polyalkylene ether glycols'19925,073,650'Preparation of 1,4-butanediol'19915,068,361'Preparation of caprolactone'19915,068,398'Preparation of 6-aminocaproic esters'19915,032,684'Continuous purification of caprolactam'19915,030,328'Method of separating .gamma.-butyrolactone from mixtures containing diethyl succinate'19915,008,408'Preparation of 1,4-butanediol and tetrahydrofuran'19915,003,102'Preparation of 5-formylvaleric esters'19914,990,692'Removal of cyclohexanol'19914,990,688'Removal of cyclohexanol'19914,982,018'Removal of cyclohexanol from aqueous solutions containing it and aromatic sulfonic acids'19914,963,673'Preparation of caprolactam'19904,963,672'Preparation of caprolactam'19904,950,429'Preparation of 6-aminocaproic acid'19904,940,805'Preparation of 1,4-butanediol or tetrahydrofuran or both'19904,935,269'Longitudinal side edge of a motor vehicle and profiled strip combination'19904,933,487'Preparation of 4-pentenates'19904,931,590'Preparation of adipic acid'19904,906,769'Isomerization of 2-pentenoates to 3-pentenoates'19904,879,406'Preparation of pentenoic esters from formylvaleric esters'19894,874,889'Isomerization of 2-pentenoates to 3-pentenoates'19894,873,362'Preparation of 2-substituted 4-acyloxy-2-butenals'19894,853,473'Preparation of 2(5H)-furanones'19894,845,269'Preparation of 3-pentenoates from 2-pentenoates'19894,845,247'3,4,-dihydro-2H-pyrans'19894,843,171'1,1-dialkoxy-2-methyl-4,4-diacyloxy-2-butenes'19894,837,346'Preparation of esters of tetrahydropyran-4-carboxylic acid'19894,806,679'Isomerization of diacyloxybutenes'19894,804,786'Preparation of 4-monoacetals of 2-methylbut-2-ene-1,4-dial'19894,791,219'Preparation of etherified 3-hydroxyvalerates'19884,791,220'Isomerization of 2-cis-pentenoates to 2-trans-pentenoates'19884,788,293'Preparation of 1-pyrazolines'19884,780,448'Preparation of a catalyst containing copper and silica'19884,777,285'Preparation of alkenecarboxylates'19884,772,746'Preparation of 4-pentenoates'19884,767,857'Preparation of caprolactam'19884,767,856'Preparation of caprolactam from 6-aminocaproic acid, esters and amides'19884,766,237'Preparation of 6-aminocaproates'19884,745,228'Preparation of cyclic ketones'19884,740,613'Preparation of 4-pentenoates'19884,731,445'Preparation of epsilon-caprolactam'19884,730,041'Preparation of .epsilon.-caprolactams'19884,730,040'Preparation of caprolactam'19884,709,097'Conversion of 1,3-dioxanes to 4-oxa-aldehydes'19874,694,107'Preparation of ketones by isomerization of aldehydes'19874,677,230'Preparation of 2-methyl-2-alkenals'19874,665,252'Preparation of alkylbenzenes'19874,650,896'Preparation of 2-alkyl-4,4-diacyloxybut-2-enals'19874,618,704'Acyloxy-2-butenes and their preparation'19864,599,458'Preparation of 2-methylalk-2-enals'19864,543,417'.omega.,.omega.-Diacyloxy-2,6-dimethyl-octatrienoates and -octatrienals, their preparation and their use for the synthesis of terpene compounds'19854,534,724'Apparatus for producing profiled strands'19854,529,814'Acyloxyalkadienoates and their preparation'19854,521,342'Preparation of 2-alkyl-4,4-diacyloxybut-2-enals'19854,513,150'Preparation of but-2-ene-1,4-diones substituted in the 1,4-positions'19854,506,096'2-Alkyl-2,4-diacyloxy-but-3-enals'19854,504,676'Preparation of diacyloxybutenes'19854,480,123'Preparation of diacyloxyalkadienes'19844,468,525'Preparation of diacyloxyhexadienes from hexatrienes'19844,467,120'Preparation of .alpha.,.beta.-unsaturated aldehydes and 2,7-dimethyl-octa-2,6-dienal'19844,466,922'Preparation of 3-alkyl-3-acyloxy-4-hydroxybut-1-enes'19844,436,944'Preparation of o-xylene and ethylbenzene'19844,410,719'Preparation of 2-alkyl-4,4-diacyloxybut-2-enals'19834,394,290'Regeneration of supported catalysts containing palladium and/or platinum and tellurium'19834,379,756'Reactivation of supported catalysts which contain palladium, copper and tellurium'19834,287,356'Preparation of vinylglycol esters'19814,284,796'Preparation of 4-acyloxy-2-methyl-crotonaldehydes'19814,239,706'Preparation of crotonaldehydes'19804,119,665'Manufacture of 6-aminocaproamide'19784,079,757'Sleeve with folds therein'19784,064,124'Manufacture of pyrazines'19774,060,543'Manufacture of 5-cyanovaleric acid and its esters'19774,048,165'Manufacture of 1-substituted oximino cyclo alkenes-(1)'19774,042,588'Manufacture of 1,2,4-dihydrotriazine-4-oxide-spiro-(3,1\')-[oximino-(2\')-cycloalkanes]'19774,042,587'1,2,4-Dihydrotriazine-4-oxides and a process for their production'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–2011Patents assigned to BASF AG (235)· patent assignee history
1977–2018Based in Heidelberg, DE· patent location history
1978–1985Patents assigned to CONTINENTAL GUMMI WERKE AG (2)· patent assignee history
1978–1990Based in Hanover, DE· patent location history
2012–2018Patents assigned to BASF SE (5)· patent assignee history
2012–2013Patents assigned to FISCHER ROLF-HARTMUTH (2)· patent assignee history
2018–2020Patents assigned to GOPRO INC (5)· patent assignee history
2018–2019Based in San Diego, CA, US· patent location history
2018–2020Based in San Mateo, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 235 | 1977–2011 |
| BASF SE | 5 | 2012–2018 |
| GOPRO INC | 5 | 2018–2020 |
| CONTINENTAL GUMMI WERKE AG | 2 | 1978–1985 |
| FISCHER ROLF-HARTMUTHself | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Heidelberg, DE | 243 | 1977–2018 |
| San Diego, California, US | 3 | 2018–2019 |
| Hanover, DE | 3 | 1978–1990 |
| San Mateo, California, US | 2 | 2018–2020 |