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Inventor

Walter F. Hoffstadt

Inventor
Vestal, NY, US

Overview

3→
Patents
1978–1979
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Dprimary
C07DHeterocyclic compounds43%
C07CAcyclic or carbocyclic compounds29%
G03CPhotosensitive materials for photographic purposes29%
PatentTitleYear
4,138,571'Nitrophenyl imino propionates'19794,129,739'Amidine compounds'19784,113,954'Process for the preparation of 3-anilino-5-pyrazolones'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1979Patents assigned to GAF CORP (3)· patent assignee history
1978–1979Based in Vestal, NY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GAF CORP31978–1979
Locations
LocationPatentsSpan
Vestal, New York, US31978–1979