Inventor

Gerhard Welzel

Inventor
Mannheim, DE

Overview

7→
Patents
1978–1989
Patent span
Chemistry
Primary field (CPC C)

Patents· 7 as inventor

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

C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds17%
C08JWorking-up17%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients17%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons17%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds8%
C08LCompositions of macromolecular compounds8%
C21DModifying the physical structure of ferrous metals8%
F16FSprings8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1987Patents assigned to BASF AG (6)· patent assignee history
1978–1987Based in Mannheim, DE· patent location history
1989Patents assigned to DAIMLER BENZ AG (1)· patent assignee history
1989Based in Seeshaupt, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BASF AG61978–1987
DAIMLER BENZ AG11989
Locations
LocationPatentsSpan
Mannheim, DE61978–1987
Seeshaupt, DE11989