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Inventor

Tracy E. Chapman

Inventor
Midland, MI, US

Overview

4→
Patents
1988–1989
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.

C09Bprimary
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments100%
PatentTitleYear
4,840,676'Insoluble pigments and preparation thereof'19894,773,936'Insoluble pigments and preparation thereof'19884,769,079'Insoluble pigments and preparation thereof'19884,769,080'Insoluble pigments and preparation thereof'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1989Patents assigned to DOW CHEMICAL CO (4)· patent assignee history
1988–1989Based in Midland, MI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DOW CHEMICAL CO41988–1989
Locations
LocationPatentsSpan
Midland, MI, US41988–1989