Inventor
Heinz J. Niessen
Inventor
Bergisch Gladbach, DE
Overview
Patents· 5 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 thereof63%
A61KPreparations for medical, dental or toiletry purposes13%
C09KMaterials for miscellaneous applications, not provided for elsewhere13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
5,154,754'Oil-in-water emulsions and a process for their preparation and their use'19924,824,663'Biocidal macroemulsions containing polyvinyl alcohol'19894,814,167'Pyrettroid macroemulsions containing polyvinyl alcohol'19894,500,348'Oil-in-water emulsions, and their use'19854,266,962'Drift reducing agricultural compositions'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1989Patents assigned to BAYER AG (4)· patent assignee history
1981–1992Based in Bergisch Gladbach, DE· patent location history
1992Patents assigned to HOECHST AG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 4 | 1981–1989 |
| HOECHST AG | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bergisch Gladbach, DE | 5 | 1981–1992 |