Inventor

Steven E. Schonfeld

Inventor

Akron, OH, US

Overview

11→

Patents

1976–2008

Patent span

Chemistry

Primary field (CPC C)

Patents· 11 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 ingredients26%

C08JWorking-up19%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%

Y10TTechnical subjects covered by former us classification15%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds7%

B29CShaping or joining of plastics4%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts4%

B60CVehicle tyres4%

C08LCompositions of macromolecular compounds4%

H05BElectric heating4%

PatentTitleYear

7,393,564'Rubber compositions and articles thereof having improved metal adhesion'2008 7,201,944'Rubber compositions and articles thereof having improved metal adhesion and metal adhesion retention with bright steel'2007 4,929,684'Stiff sidewalls for pneumatic tires'1990 4,745,145'Rubber compositions and articles thereof having improved metal adhesion and metal adhesion retention'1988 4,324,281'Method, composition and product employing a tetracarboxylic dianhydride to improve adhesion between a metal member and a contiguous rubber skim stock'1982 4,239,663'Method, composition and product with improved adhesion between a metal member and a contiguous rubber skim stock'1980 4,203,874'Method, composition and product with improved adhesion between a metal member and a contiguous cured rubber skim stock'1980 4,195,679'Composition and product with improved adhesion between a metal member and a contiguous cured rubber skim stock'1980 4,083,901'Method for curing polyurethanes'1978 4,046,743'Catalysis of amine curable polymers by high dielectric constant compounds'1977 3,980,595'Polyurethane elastomers modified with hydrocarbon rubber'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1988Patents assigned to FIRESTONE TIRE & RUBBER CO (8)· patent assignee history

1976–2008Based in Akron, OH, US· patent location history

1990Patents assigned to BRIDGESTONE FIRESTONE INC (1)· patent assignee history

2007–2008Patents assigned to BRIDGESTONE FIRESTONE NORTH AM (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FIRESTONE TIRE & RUBBER CO	8	1976–1988
BRIDGESTONE FIRESTONE NORTH AM	2	2007–2008
BRIDGESTONE FIRESTONE INC	1	1990

Locations

Location	Patents	Span
Akron, OH, US	11	1976–2008