LexDanaLexDanabeta
Inventor

Josef Kramer

Inventor
Darmstadt, DE

Overview

4→
Patents
1976–1987
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Pprimary
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations31%
C07CAcyclic or carbocyclic compounds23%
C07DHeterocyclic compounds15%
Y02PClimate change mitigation technologies in the production or processing of goods15%
A61KPreparations for medical, dental or toiletry purposes8%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium8%
PatentTitleYear
4,713,465'Flavanone intermediates for halogenohydroxyflavones'19874,210,651'Thiaprostaglandins'19804,080,458'Thiaprostaglandins'19783,932,487'13-Sulfa-prostaglandins'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1987Patents assigned to MERCK PATENT GMBH (4)· patent assignee history
1976–1980Based in Darmstadt, DE· patent location history
1987Based in Seeheim-Jugenheim, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MERCK PATENT GMBH41976–1987
Locations
LocationPatentsSpan
Darmstadt, DE31976–1980
Seeheim-Jugenheim, DE11987