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Inventor

David B. Litzen

Inventor
Houston, TX, US

Overview

2→
Patents
1988–1996
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 compounds100%
PatentTitleYear
5,583,263'Process of making ketones'19964,762,616'Isopropyl alcohol purification process'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1996Patents assigned to SHELL OIL CO (2)· patent assignee history
1988–1996Based in Houston, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHELL OIL CO21988–1996
Locations
LocationPatentsSpan
Houston, Texas, US21988–1996