Inventor
Heinrich Pelster
Inventor
Odenthal, DE
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds83%
C07BGeneral methods of organic chemistry17%
PatentTitleYear
5,087,754'Process for the preparation of N,N-dialkylaniline'19924,600,542'Sulphonation products of naphthalene, processes for their preparation, and their use'19864,562,010'Process for the preparation of benzoic anhydride'19854,476,320'Process for the preparation of fluoroaromatic compounds substituted in the o-position'19844,038,328'Process for preparing 2-nitro-4,6-dichloro-5-methylphenol'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1992Patents assigned to BAYER AG (4)· patent assignee history
1977–1992Based in Odenthal, DE· patent location history
1986Patents assigned to KRAMER AG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 4 | 1977–1992 |
| KRAMER AG | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Odenthal, DE | 5 | 1977–1992 |