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Inventor

Byron G. Held

Inventor
Charles City, IA, US

Overview

1→
Patents
1976
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. pigments100%
PatentTitleYear
3,985,724'1-(4\'-Diazoniumphenyl)-pyridinium salts and the process of preparation'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to SALSBURY LAB (1)· patent assignee history
1976Based in Charles City, IA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SALSBURY LAB11976
Locations
LocationPatentsSpan
Charles City, IA, US11976