Inventor

Volker Onnenberg

Inventor
Wiehl, DE

Overview

12→
Patents
1979–1991
Patent span
Performing operations
Primary field (CPC B)

Patents· 12 as inventor

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

B29Cprimary
B29CShaping or joining of plastics41%
B29LIndexing scheme associated with subclass b29c, relating to particular articles28%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests24%
D06BTreating textile materials using liquids, gases or vapours7%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1991Patents assigned to BAYER AG (12)· patent assignee history
1979–1980Based in Wiel, DE· patent location history
1988–1991Patents assigned to FRITSCHE MOELLMANN GMBH CO KG (5)· patent assignee history
1988–1991Based in Wiehl, DE· patent location history
1989–1991Based in Drabenderhoehe, DE· patent location history
1990Patents assigned to FRITSCHE MOLLMANN GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BAYER AG121979–1991
FRITSCHE MOELLMANN GMBH CO KG51988–1991
FRITSCHE MOLLMANN GMBH11990
Locations
LocationPatentsSpan
Wiehl, DE71988–1991
Drabenderhoehe, DE31989–1991
Wiel, DE21979–1980