LexDanaLexDanabeta
Inventor

Dazhong Yang

Inventor
Bayreuth, DE

Overview

1→
Patents
1994
Patent span
Chemistry
Primary field (CPC C)

Patents· 1 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds33%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds33%
G02BOptical elements, systems or apparatus33%
PatentTitleYear
5,373,081'Polyether ketones and polyether sulfones based on phenylindane, and the use thereof for optical systems'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to HOECHST AG (1)· patent assignee history
1994Based in Bayreuth, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HOECHST AG11994
Locations
LocationPatentsSpan
Bayreuth, DE11994