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Inventor

Donald K. Black

Inventor
Newark, DE, US

Overview

2→
Patents
1977–2001
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.

C07Cprimary
C07CAcyclic or carbocyclic compounds25%
D21HPulp compositions25%
G03GElectrography25%
Y10TTechnical subjects covered by former us classification25%
PatentTitleYear
6,316,095'2-oxetanone sizing agents and their use in paper'20014,058,663'Stabilization with alkali metal compound material of certain thermally unstable DMT'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2001Patents assigned to HERCULES INC (2)· patent assignee history
1977Based in New Castle, DE, US· patent location history
2001Based in Newark, DE, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HERCULES INC21977–2001
Locations
LocationPatentsSpan
Newark, Delaware, US12001
New Castle, Delaware, US11977