Inventor
Joel R. Christensen
Inventor
Wilmington, DE, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Nprimary
A01NPreservation of bodies of humans or animals or plants or parts thereof50%
C07DHeterocyclic compounds50%
PatentTitleYear
4,906,283'Herbicidal sulfonamides'19904,902,339'Herbicidal sulfonamides'19904,877,440'Thiophenesulfonamide herbicides'19894,801,327'Herbicidal sulfonamides'19894,764,207'Herbicidal sulfonamides'19884,759,790'Herbicidal sulfonamides'19884,743,290'Thiophenesulfonamide herbicides'19884,690,705'Herbicidal sulfonamides'19874,685,955'Herbicidal sulfonamides'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1990Patents assigned to DU PONT (9)· patent assignee history
1987–1990Based in Wilmington, DE, US· patent location history
1989Based in Newark, DE, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DU PONT | 9 | 1987–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wilmington, Delaware, US | 8 | 1987–1990 |
| Newark, Delaware, US | 1 | 1989 |