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Inventor

Hans D. Winkelmann

Inventor
Cologne, DE

Overview

4→
Patents
1978–1982
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.

C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds43%
C07CAcyclic or carbocyclic compounds29%
C07DHeterocyclic compounds14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
4,350,573'Halogenated aromatic amines which are stable in color, and a process for their preparation'19824,211,699'Isocyanate adduct diols'19804,153,775'Self-crosslinkable polyurethanes'19794,070,345'Monomethylol ether diols and polyurethane solutions prepared therefrom'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1982Patents assigned to BAYER AG (4)· patent assignee history
1978–1980Based in Cologne, DE· patent location history
1982Based in Charleston, SC, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BAYER AG41978–1982
Locations
LocationPatentsSpan
Cologne, DE31978–1980
Charleston, SC, US11982