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Inventor

Gerard Krempf

Inventor
Lyons, FR

Overview

4→
Patents
1981–1995
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.

C07Cprimary
C07CAcyclic or carbocyclic compounds38%
C01BNon-metallic elements13%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds13%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application13%
Y02PClimate change mitigation technologies in the production or processing of goods13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
5,393,508'Vaporization of solutions of hydrazine hydrate'19955,252,309'Azine synthesis in the absence of CO.sub.2'19934,883,859'Process for producing hydroxylated polybutadiene'19894,283,577'Method for making ethylene chlorohydrin'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to UGINE KUHLMANN (1)· patent assignee history
1981–1989Based in Sainte Foy les Lyon, FR· patent location history
1989–1995Patents assigned to ATOCHEM (2)· patent assignee history
1993Patents assigned to ATOCHEM ELF SA (1)· patent assignee history
1993–1995Based in Lyons, FR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ATOCHEM21989–1995
ATOCHEM ELF SA11993
UGINE KUHLMANN11981
Locations
LocationPatentsSpan
Lyons, FR21993–1995
Sainte Foy les Lyon, FR21981–1989