Inventor

Heinrich Franke

Inventor
Berlin, DE

Overview

13→
Patents
1979–2001
Patent span
Chemistry
Primary field (CPC C)

Patents· 13 as inventor

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

A01Nprimary
A01NPreservation of bodies of humans or animals or plants or parts thereof35%
C07CAcyclic or carbocyclic compounds27%
C07DHeterocyclic compounds15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
H01RElectrically-conductive connections8%
H05KPrinted circuits4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–2001Patents assigned to SCHERING AG (9)· patent assignee history
1979Patents assigned to WEIDMUELLER KG C (1)· patent assignee history
1979–2001Based in Berlin, DE· patent location history
1979–1989Based in Detmold, DE· patent location history
1985–1989Patents assigned to WEIDMUELLER C A GMBH CO (2)· patent assignee history
1988Patents assigned to SCHERING AKT (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHERING AG91979–2001
WEIDMUELLER C A GMBH CO21985–1989
SCHERING AKT11988
WEIDMUELLER KG C11979
Locations
LocationPatentsSpan
Berlin, DE101979–2001
Detmold, DE31979–1989