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Inventor

Frederick George Schappell

Inventor
Newark, DE, US

Overview

3→
Patents
1976–1977
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.

C08Kprimary
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients75%
C07CAcyclic or carbocyclic compounds25%
PatentTitleYear
4,009,294'Process of preparing fire-retardant natural and synthetic fibers'19773,957,835'Brominated azido fire retardants'19763,956,398'Bis-monoperoxyacetals and -ketals'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1977Patents assigned to HERCULES INC (3)· patent assignee history
1976–1977Based in Newark, DE, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HERCULES INC31976–1977
Locations
LocationPatentsSpan
Newark, Delaware, US31976–1977