Organo-modified silicone polymers and hydrogels comprising the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9890234
SERIAL NO

14492646

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A hydrophilic silicone polymer composition suitable for use in producing hydrogel polymer films disclosed. In one aspect, a hydrophilic silicone monomer is of the Formula 1:

description='In-line Formulae' end='lead'wAmBnw  (1)description='In-line Formulae' end='tail'

where A is a divalent block comprising a silicone-containing pendant group. In one embodiment, the silicone-containing pendant group comprises polyalkylene oxide groups. The structure of the polymer can be controlled and tuned to provide a material with excellent wettability and oxygen permeability. The polymers are suitable for use in a variety of applications including in providing a film for forming contact lenses.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
MOMENTIVE PERFORMANCE MATERIALS INC2750 BALLTOWN ROAD NISKAYUNA NY 12309

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bhat, Shreedhar Bangalore, IN 19 30
Naik, Sandeep Shashikant Bangalore, IN 3 16
Phukan, Monjit Bangalore, IN 32 96
Saxena, Anubhav Bangalore, IN 46 324

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 13, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 13, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00