Inventor
Georg Schaeffer
Inventor
Hofheim, DE
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds71%
C07DHeterocyclic compounds18%
C01DCompounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium6%
C02FTreatment of water, waste water, sewage, or sludge6%
PatentTitleYear
4,952,697'Process for the preparation of 2-nitro-3-aminopyridine, and the intermediates which are formed in the reaction'19904,770,820'Process for the preparation of carbamoyl chlorides derived from secondary amines'19884,590,295'Process for the manufacture of p-hydroxyphenyl-acetic acid'19864,564,712'Process for the preparation of diphenyl ethers'19864,340,746'Process for the preparation of thiochloroformates'19824,339,594'Process for the manufacture of phenylacetic acid and simple derivatives thereof'19824,306,102'P-Tert.butylbenzotribromide and p-tert.butylbenzoyl bromide and process for their manufacture'19814,277,421'Process for the manufacture of para-tert.butylbenzaldehyde and its derivatives which are halogen-substituted at the nucleus'19814,266,066'Process for the manufacture of ketones'19814,145,283'Process for the purification of waste water'19794,110,365'Process for the manufacture of naphthalene-monosulfonic acids'19784,085,129'Process for the preparation of chloroformic acid aryl esters and cyclic carbonates'19783,974,084'Process for the manufacture of anhydrous alkali metal arylate solutions and separation of the arylates from alkali metal sulfite'19763,962,326'Process for the manufacture of carboxylic acid chlorides'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1990Patents assigned to HOECHST AG (14)· patent assignee history
1976–1990Based in Hofheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 14 | 1976–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hofheim, DE | 14 | 1976–1990 |