Coating systems for the controlled delivery of hydrophilic bioactive agents

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8496954
APP PUB NO 20090280155A1
SERIAL NO

12386469

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Described are coating systems for the controlled delivery of hydrophilic bioactive agents, for example, from implantable medical devices. The coating systems of the invention comprise (a) a polymeric basecoat layer containing one or more hydrophilic bioactive agents; and (b) an elution-controlling topcoat layer that comprises a poly(ethylene-co-vinyl acetate) copolymer. The elution rate of the hydrophilic bioactive agent can be controlled by varying the vinyl acetate concentration in the elution-controlling topcoat layer.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • SURMODICS, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chappa, Ralph A Ham Lake, US 100 4813
Hergenrother, Robert W Eden Prairie, US 30 1034
Wadman, Shannon A Minneapolis, US 1 13
Wormuth, Klaus R St. Louis Park, US 2 19

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
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 30, 2025
Fee Large entity fee small entity fee micro entity fee
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