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Inventor

Harry Henkel

Inventor
Apolda, DE

Overview

3→
Patents
1976–1999
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C07Jprimary
C07JSteroids33%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations17%
F25BRefrigeration machines, plants or systems17%
G05DSystems for controlling or regulating non-electric variables17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
5,866,559'17.alpha.-cyanomethylestra-4,9-dien derivatives and pharmaceutical compositions containing same'19994,474,701'Process for the separation of 4-androsten-3,17-dione and 1,4-androstadien-3,17-dione'19843,999,708'Freeze element for A/C throttling valve'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to GEN MOTORS CORP (1)· patent assignee history
1976Based in Dayton, OH, US· patent location history
1984Patents assigned to JENAPHARM VEB (1)· patent assignee history
1984–1999Based in Apolda, DE· patent location history
1999Patents assigned to JENAPHARM GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GEN MOTORS CORP11976
JENAPHARM GMBH11999
JENAPHARM VEB11984
Locations
LocationPatentsSpan
Apolda, DE21984–1999
Dayton, OH, US11976