Inventor
Karl-Heinz Wahl
Inventor
Odenthal, DE
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds42%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations33%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material17%
A61KPreparations for medical, dental or toiletry purposes8%
PatentTitleYear
6,998,483'Process for the preparation of sulphonamide-substituted imidazotriazinones'20066,777,551'Process for the preparation of sulphonamide-substituted imidazotriazinones'20046,362,214'Thermodynamically stable form of (R)-3-(4-fluorophenyl) sulphonylamino-1,2,3,4-tetrahydro-9H-carbazole-9-propanoic acid (ramatroban)'20026,294,673'Process for preparing nifedipine'20015,650,514'3-substituted quinoline-5-carboxylic acid derivatives and processes for their preparation'19974,321,815'Apparatus for interchangeable mounting of rollers, particularly in a straightening machine'19824,307,596'Roller block, in particular for a roller straightening machine'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1982Patents assigned to WIRTH CO KG MASCH BOHR (2)· patent assignee history
1981–1982Based in Erkelenz, DE· patent location history
1997–2004Patents assigned to BAYER AG (3)· patent assignee history
1997–2006Based in Odenthal, DE· patent location history
2002Patents assigned to BAYER YAKUHIN LTD (1)· patent assignee history
2006Patents assigned to BAYER HEALTHCARE AG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 3 | 1997–2004 |
| WIRTH CO KG MASCH BOHR | 2 | 1981–1982 |
| BAYER HEALTHCARE AG | 1 | 2006 |
| BAYER YAKUHIN LTD | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Odenthal, DE | 5 | 1997–2006 |
| Erkelenz, DE | 2 | 1981–1982 |