Inventor
Hanspeter Scherrer
Inventor
Therwil, CH
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere43%
C07CAcyclic or carbocyclic compounds37%
C07DHeterocyclic compounds17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
4,309,539'Pyrimidine derivatives'19824,198,130'Liquid crystal mixtures'19804,180,475'Liquid crystal mixtures'19794,066,570'Phenyl-pyrimidines'19784,062,798'Phenylpyrimidine derivatives'19774,061,587'Liquid crystalline cinnamic acid esters'19774,058,477'Liquid crystal Schiffs bases'19774,058,476'Liquid crystalline isonitriles'19774,058,478'Liquid crystal esters'19774,053,431'Liquid crystalline biphenyls'19773,997,242'Electro-optical cell containing dielectric isonitriles'19763,997,536'Phenyl-pyrimidines'19763,981,817'Mixtures of liquid crystals'19763,963,311'Liquid crystal esters'19763,952,046'Liquid crystalline biphenyls'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1982Patents assigned to HOFFMANN LA ROCHE (15)· patent assignee history
1976–1982Based in Therwil, CH· patent location history
1980Based in Therwill, CH· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOFFMANN LA ROCHE | 15 | 1976–1982 |
Locations
| Location | Patents | Span |
|---|---|---|
| Therwil, CH | 14 | 1976–1982 |
| Therwill, CH | 1 | 1980 |