Retard form of pharmaceuticals with insoluble porous diffusion coatings

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4361546
SERIAL NO

06273643

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A pharmaceutical dosage unit retard form having a constant, pH-independent release rate of active ingredient, consisting of a core comprising an active ingredient, and a semi-permeable diffusion coating over the core, were the coating consists of a water-insoluble film-former, a water-soluble polymer and eventually an acid-insoluble polymer incorporated therein.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
BOEHRINGER INGELHEIM GMBH A CORP OF GERMANY657 INGELHEIM AM RHEIN

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arndts, Dietrich Appenheim, DE 26 193
Bechtel, Wolf D Appenheim, DE 10 131
Bozler, Gerhard Biberach, DE 7 253
Brickl, Rolf Biberach, DE 14 427
Darda, Siegfried Ingelheim, DE 4 431
Freund, Bernhard Gau-Algesheim, DE 32 1074
Gruber, Peter Biberach, DE 61 1268
Harwalik, Heribert Ingelheim, DE 3 109
Haselbarth, Volkmar Ingelheim, DE 4 116
Rominger, Karl L Ingelheim, DE 3 109
Stricker, Herbert Ingelheim, DE 12 312

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation