The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 1994
Filed:
Jun. 27, 1991
Miklos Zsuga, Debrecen, HU;
Tibor Kelen, Debrecen, HU;
Jozsef Nagy, Debrecen, HU;
Judit Barkanyi, Tiszavasvari, HU;
Magdolna Bene, Tiszavasvari, HU;
Sandor Ondi, Tiszavasvari, HU;
Imre Gulyas, Tiszavasvari, HU;
Istvan Gyoker, Tiszavasvari, HU;
Janos Repasi, Tiszavasvari, HU;
Agota Repasi, Tiszavasvari, HU;
Alkaloida Vegyeszeti Gyar, Tiszavasvari, HU;
Abstract
Controlled release pharmaceutical preparations are prepared by homogenizing an organic or inorganic pharmaceutical active substance such as an opium alkaloid or its salts, an opium antagonist or its salts, an aliphatic or aromatic amine derivative or its salts, a phenolate type medicament, or Zn, Fe, Mg, K, Na salts, a fatty acid or its salt necessary to achieve a continuous phase transfer and an ethylene vinyl acetate copolymer and formulating the resulting homogeneous mixture by