Inventor
Johannes M. A. Zwagemakers
Inventor
Weesp, NL
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds64%
A61KPreparations for medical, dental or toiletry purposes18%
C07CAcyclic or carbocyclic compounds18%
PatentTitleYear
4,889,849'Spasmolytically active tertiary amine derivatives'19894,317,835'Novel basic substituted-alkylidenamino-oxyalkyl-carboxylic acid esters'19824,308,282'Spasmolytics'19814,242,348'Novel basic substituted-alkylidenamino-oxylalkyl-carboxylic-acid esters'19804,196,216'Novel benzylidene amini-oxyalkyl carboxylic acids and carboxylic acid derivatives'19804,163,060'Aralkylamino carboxylic acids and derivatives having spasmolytic activity'19794,125,623'Spasmolytics'19784,071,686'Novel benzylidene amino-oxyalkyl carboxylic acids and carboxylic acid derivatives'19784,044,023'Novel basic substituted-alkylidenamino-oxylalkylcarboxylic-acid esters'19774,034,103'Aralkylamino sulfones having spasmolytic activities'19773,996,245'Spasmolytics'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1980Patents assigned to PHILIPS CORP (7)· patent assignee history
1976–1989Based in Weesp, NL· patent location history
1977Based in van Houtenlaan, NL· patent location history
1980–1989Patents assigned to DUPHAR INT RES (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PHILIPS CORP | 7 | 1976–1980 |
| DUPHAR INT RES | 4 | 1980–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Weesp, NL | 10 | 1976–1989 |
| van Houtenlaan, NL | 1 | 1977 |