Inventor

Werner Bonrath

Inventor

Freiburg, DE

Overview

1996–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 95 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary

C07CAcyclic or carbocyclic compounds38%

C07DHeterocyclic compounds23%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%

C07BGeneral methods of organic chemistry6%

Y02PClimate change mitigation technologies in the production or processing of goods5%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations2%

C11BProducing, e.g. by pressing raw materials or by extraction from waste materials, refining or preserving fats, fatty substances, e.g. lanolin, fatty oils or waxes2%

A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for2%

C10GCracking hydrocarbon oils2%

B01DSeparation1%

PatentTitleYear

11,078,1786-chromanol derivatives and their synthesis2021 11,014,063Device for processing and conditioning of material transported through the device2021 10,975,009Selective reduction of aldehydes and ketones2021 10,752,569Process for the manufacture of 2,6-dimethyl-5-hepten-1-al2020 10,450,250Production of farnesol2019 10,370,314Selective reduction of esters to alcohols2019 10,029,970Method for producing specific a, b-unsaturated aldehydes2018 10,005,710Process of production of 1-(5,5-dimethylcyclohex-1-en-1-yl)ethanone and 1-(5,5-dimethylcyclohex-6-en-1-yl )ethanone2018 9,981,935Formation of chiral 4-chromanones using chiral pyrrolidines in the presence of acids2018 9,957,228Process of production of 7,8-dihydro-C15-aldehyde2018 9,908,847'Method for producing specific Î±,Î²-unsaturated aldehydes by rearrangement process'2018 9,902,674'Process of production of 2,5-dimethylphenol'2018 9,790,164'Process of production of dehydrolinalyl acetate (II)'2017 9,718,749'Process for the preparation of 3,7-dimethylnonan-1-ol'2017 9,611,200'(6R,10R)-6,10,14-trimetylpentadecan-2-one prepared from 6,10,14 trimetylpentadeca-5,9,13-trien-2-one or 6,10,14-trimetylpentadeca-5,9-dien-2-one'2017 9,573,872'Using mixtures of E/Z isomers to obtain quantitatively specific products by combining asymmetric hydrogenation and isomerization'2017 9,561,989'Process of asymmetric hydrogenation of ketals and acetals'2017 9,505,699'Process of production of dehydrolinalyl acetate (I)'2016 9,458,096'Process for the manufacture of methyl limonitrile'2016 9,458,076'Using mixtures of E/Z isomers to obtain quantitatively specific products by combined asymmetric hydrogenations'2016 9,452,961'(6R,10R)-6,10,14-trimetylpentadecan-2-one prepared from 6,10-dimetylundec-5-en-2-one or 6,10-dimetylundeca-5,9-dien-2-one'2016 9,447,017'Process for the production of 4-alkanoyloxy-2-methylbutanoic acid'2016 9,421,536'Device useful for hydrogenation reactions (II)'2016 9,415,374'Device useful for hydrogenation reactions (III)'2016 9,381,489'Device useful for hydrogenation reactions (I)'2016 9,370,772'Catalytic system'2016 9,371,279'Transesterification process of retinol esters'2016 9,340,750'Process for the manufacture of methyl limonitrile'2016 9,309,194'Intermediates for the vitamin A and Î²-carotene synthesis'2016 9,283,549'Metal powderdous catalyst comprising a CoCrMo-alloy'2016 9,249,074'Synthesis of tetrahydromyrcenol'2016 9,248,431'Stepwise hydrogenation of specific isoprenoids'2016 9,238,218'Metal powderdous catalyst for hydrogenation process'2016 9,227,907'Acid chloride'2016 9,180,434'Catalytic system'2015 9,108,925'Process for the manufacture of a precursor of vitamin B1'2015 9,101,917'Structured catalyst'2015 9,067,877'Process for the production of 1,3,3-trimethyl-2-(3-methylpent-2-en-4-ynyl)cyclohex-1-ene'2015 9,045,404'Process for the manufacture of 2-pentyn-1-ol'2015 9,040,742'Catalytic synthesis of vitamin A intermediate'2015 8,921,605'Process for preparing pseudoionone'2014 8,916,715'Process for 4-methyloxazole-5-carboxamide'2014 8,829,231'Preparation of 4-acetoxy-2-methylbutanal by catalytic carbon carbon double bond hydrogenation'2014 8,809,591'Process for the manufacture of TMHQ'2014 8,802,898'Isomerization of Î²-keto-allenes'2014 8,674,143'Synthesis of green ketone intermediate'2014 8,664,450'Manufacture of gamma-delta-unsaturated ketones'2014 8,592,636'Hydrogenation process'2013 8,563,780'Allyl and propargyl ethers'2013 8,546,621'Process for the manufacture of 3,7-dimethyl-1-octen-3-ol'2013 8,536,341'Primary allylic alcohol and Ag'2013 8,530,707'Selective hydrogenation catalyst comprising palladium on porous silica glass and the use thereof'2013 8,431,727'Process for the manufacture of chroman derivatives, especially Î±-tocopherol and alka-noates thereof'2013 8,426,617'Asymmetric hydrogenation of alkenes using chiral iridium complexes'2013 8,383,837'Reaction with a gold catalyst'2013 8,217,203'Process for the preparation of (E, E)-farnesyl acetone'2012 8,198,443'Synthesis of 4-amino-pyrimidines scaffolds'2012 8,124,804'Process for the acylation of organic hydroxy compounds'2012 8,003,843'Transport of ethyne in form of Î±-alkynols as ethyne precursors'2011 7,935,849'Process for the preparation of saturated aliphatic ketones'2011 7,935,829'Manufacture of thiolactones'2011 7,897,822'Process for ubiquinone intermediates'2011 7,842,841'Process for the preparation of timberone'2010 7,803,952'Manufacture of lactones'2010 7,696,364'Process for the manufacture of alkenylated hydroxylated aromatic compounds, of chroman compounds and of their acylated derivatives'2010 7,638,658'Ethynylation process'2009 7,626,046'Manufacture of Î±-tocopherol'2009 7,622,591'Route to Î±- tocopheryl alkanoates and percursors thereof'2009 7,601,877'Process for the preparation of ubihydroquinones and ubiquinones'2009 7,435,836'Process for the manufacture of tocopheryl acylates'2008 7,321,053'Process for the manufacture of tocyl and tocopheryl acylates'2008 7,319,172'Process for the preparation of methylheptenone'2008 7,169,943'Manufacture of tocopheryl acetate'2007 7,153,984'Manufacture of Î±-tocopherol'2006 7,153,994'Manufacture of trimethylhydroquinone diacylates'2006 7,135,580'Process for the manufacture of Î±-tocopheryl acetate'2006 7,105,686'Manufacture of tocol, tocol derivatives and tocopherols'2006 6,949,685'Ethynylation process'2005 6,743,615'Process for the manufacture of a vitamin E intermediate'2004 6,700,002'Process for making vitamin E using hydrogen-tris(oxalato) phosphate'2004 6,482,961'Method of making (all-rac)--tocopherol'2002 6,455,707'Process for the preparation of substitued pyranes'2002 6,452,023'Process for preparing d,l--tocopherol'2002 6,444,098'Process for the preparation of tocol acylates and tocopherol acylates'2002 6,423,851'Preparation of d,1--tocopherol'2002 6,383,392'Process for concentrating epigallocatechin gallate'2002 6,369,242'Tocopherol manufacture by tris(perfluorohydrocarbylsulphonyl) methane or metal methides thereof'2002 6,198,006'Process for the manufacture of citral'2001 6,191,313'Process for the manufacture of dihydrocitral'2001 6,066,745'Process for the synthesis of vitamin E'2000 5,910,594'Process for the manufacture of 5-cyano-4-lower alkyl-oxazoles'1999 5,908,939'Method of making D,L-A-tocopherol'1999 5,900,494'Method of making d,l-.alpha.-tocopherol'1999 5,817,827'Method for the dehydration of amides to nitriles'1998 5,502,212'Process for the manufacture of 5-cyano-4-lower alkyl-oxazoles'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2015Based in Freiburg, DE· patent location history

1999–2004Patents assigned to ROCHE VITAMINS INC (14)· patent assignee history

2005–2016Patents assigned to BONRATH WERNER (25)· patent assignee history

2006–2021Patents assigned to DSM IP ASSETS BV (75)· patent assignee history

2011Based in Freiberg, DE· patent location history

2013–2016Patents assigned to NETSCHER THOMAS (7)· patent assignee history

2013–2018Based in Basel, CH· patent location history

2013Based in Frelburg, DE· patent location history

2014–2016Patents assigned to SCHÜTZ JAN (6)· patent assignee history

2014–2021Based in Kaiseraugst, CH· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DSM IP ASSETS BV	75	2006–2021
BONRATH WERNERself	25	2005–2016
ROCHE VITAMINS INC	14	1999–2004
NETSCHER THOMAS	7	2013–2016
SCHÜTZ JAN	6	2014–2016

Locations

Location	Patents	Span
Freiburg, DE	49	1996–2015
Basel, CH	25	2013–2018
Kaiseraugst, CH	19	2014–2021
Frelburg, DE	1	2013
Freiberg, DE	1	2011