official journal of the patent office - Controller General of Patents ...

(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) Application No.: 1244/MUM/2004 A
(22) Date of filing of Application: 18/11/2004 (43) Publication Date: 09/06/2006
(54) Title of the invention: NOVEL FLOATING DOSAGE FORM
(51) International classification : A61K9/24,
A61K 9/00,
A61K 9/00
(31) Priority Document No : NIL
(32) Priority Date : NIL
(33) Name of priority country : NIL
(86) International Application No : NIL
and Filing Date : NIL
(87) International Publication No : NIL
(61) Patent of addition to :
Application No
NIL
(62)
Filed on : N.A.
Divisional to Application No : 565/MUM/2002
Filed on : 26/06/2002
(71) Name of Applicant:
CADILA HEALTHCARE LIMITED
Address of the Applicant:
ZYDUS TOWER, SATELITE CROSS
ROADS, AHMEDABAD-380 015,
INDIA.
(72) Name of the Inventor:
1. LOHRAY BRAJ B
2. TIWARI SANDIP B
3. PAI RAVEENDRA M
4. KRISHNA MURTHY T
5. METHTA PAVAK R
Filed U/S 5(2) before The Patents
(Amendment) Act, 2005: NO
(57) Abstract: A pharmaceutical gastro-retentive delivery system for controlled release of therapeutically active
agent in stomach or upper part of gastro-intestinal tract in the form of bilayer dosage form which comprises,
One layer (layer-A) which is responsible for retaining the dosage form in stomach or upper part of gastro-intestinal
tract (spatial control) for a prolonged period, comprising of pharmaceutical excipients having low bulk desity,
optionally with other pharmaceutical aids.
Second layer (Layer-B) which is responsible for prolonged or controlled drug delivery (temporal control) of
therapeutic agent which comprises of the active agent and controlled release matrix polymers optionally with other
pharmaceutical aids.
Drawing Sheets: NIL
Total Pages: 20.
Fig. Nil
The Patent Office Journal 09/06/2006 10911