Inventor
Gunter Roscher
Inventor
Kelkheim, DE
Overview
Patents· 27 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds40%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry24%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium21%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
B01DSeparation5%
C07DHeterocyclic compounds2%
PatentTitleYear
5,811,575'Process for preparing vinyl-phosphonic acids'19985,744,010'Process for the preparation of the non-toxic salts of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide and arrangement for carrying out this process'19985,710,330'Process for preparing alkanephosphonic anhydrides'19985,576,454'Process for preparing alkanephosphonic anhydrides'19965,475,128'Process for preparing dialkyl vinylphosphonates'19955,391,815'Method of separating vinylphosphonic acid from crude mixtures'19955,319,138'Process for the preparation of pure propanephosphonic anhydride'19945,292,931'Carrier catalyst, process for its preparation, and its use for the preparation of vinyl acetate'19945,250,487'Carrier catalyst, process for its preparation, and its use for the preparation of vinyl acetate'19935,225,388'Method for making a catalyst'19935,210,259'Process for the oxidation of dialkyl esters of 2-hydroxy-ethylphosphonic acid'19935,066,365'Process for the isolation of vinyl acetate by distillation'19914,960,919'Process for the preparation of alkyl alkenylphosphinates'19904,902,823'Process for the preparation of vinyl acetate'19904,894,470'Process for the preparation of dialkyl vinylphosphonates'19904,818,347'Process for the isolation of vinyl acetate'19894,409,396'Process for the manufacture of unsaturated carboxylic acid esters'19834,380,663'Process for the preparation of practically formic acid-free acetic acid'19834,370,261'Carrier catalyst for the preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gaseous phase'19834,370,492'Preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gaseous phase'19834,353,783'Process for separating water from mixtures thereof with vinyl acetate and acetic acid'19824,229,261'Process for separating water from organic multiple component mixtures by distillation'19804,219,500'Process for the manufacture of N,N\'-diacetylethylene diamine'19804,156,632'Process for the separation of water from gas mixtures formed in the manufacture of vinyl acetate'19794,133,962'Process for the preparation of carboxylic acid alkenyl esters'19794,093,559'Process for the preparation of a palladium catalyst'19784,010,198'Process for the preparation of allyl acetate'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1998Patents assigned to HOECHST AG (26)· patent assignee history
1977–1998Based in Kelkheim, DE· patent location history
1983Patents assigned to WACKER CHEMIE GMBH (1)· patent assignee history
1998Patents assigned to CLARIANT GMBH (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 26 | 1977–1998 |
| CLARIANT GMBH | 1 | 1998 |
| WACKER CHEMIE GMBH | 1 | 1983 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kelkheim, DE | 27 | 1977–1998 |