Dispersant viscosity index improving additive for lubricating oils

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5851967
SERIAL NO

08790183

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention provides dispersant viscosity index improving additives for lubricating oils. The additives are copolymers comprising from 92 weight percent to 98 weight percent of a polymer backbone and from 2 weight percent to 8 weight percent branches grafted onto the polymer backbone.

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Patent Owner(s)

Patent OwnerAddress
EVONIK ROHMAX ADDITIVES GMBHDARMSTADT DARMSTADT HESSIAN

International Classification(s)

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  • 1997 Application Filing Year
  • C10N Class
  • 4 Applications Filed
  • 3 Patents Issued To-Date
  • 75 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances199719981999200020012002200320040255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Moorman, David Sterett 5311 Bayway Dr., Baytown, TX 77520 2 24
Schauber, Claude C 85 rue Principale, 67160 Riedseltz, FR 1 2
Truong, Nguyen Dinh Villa no 6, 1 Chemin du Castellet, 06450 Le Rouret, FR 1 2

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  • 2 Citation Count
  • C10N Class
  • 0 % this patent is cited more than
  • 27 Age
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