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Inventor

Sien L. Ong

Inventor
Hofheim, DE

Overview

1→
Patents
1982
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.

C09Bprimary
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments50%
D06PDyeing or printing textiles50%
PatentTitleYear
4,322,213'Process for the production of reserve effects on polyestercellulose mixed fiber textiles'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to CASSELLA FARBWERKE MAINKUR AG (1)· patent assignee history
1982Based in Hofheim, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CASSELLA FARBWERKE MAINKUR AG11982
Locations
LocationPatentsSpan
Hofheim, DE11982