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Inventor

Hansjuergen Kessler

Inventor
Mannheim, DE

Overview

2→
Patents
1981–1992
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 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 bonds40%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests40%
C08JWorking-up20%
PatentTitleYear
5,162,385'Preparation of hard foams containing urethane groups or containing urethane and isocyanurate groups'19924,277,571'Urethane group-containing polyisocyanurate foam based on naphthenic acid-hydroxylamine adduct'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1992Patents assigned to BASF AG (2)· patent assignee history
1981–1992Based in Mannheim, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BASF AG21981–1992
Locations
LocationPatentsSpan
Mannheim, DE21981–1992