Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Tablets – lozenges – or pills
Reexamination Certificate
2005-02-15
2005-02-15
Spear, James M. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Tablets, lozenges, or pills
C424S468000, C424S472000, C514S772300, C514S774000, C514S781000
Reexamination Certificate
active
06855334
ABSTRACT:
Controlled release of active agents from sustained release push delivery devices having high drug loading are described wherein residual drug content in the device is minimized by the utilization of a flow-promoting layer between a semi-permeable wall and drug layer comprising the device.
REFERENCES:
patent: 2799241 (1957-07-01), Wurster
patent: 3133132 (1964-05-01), Loeb
patent: 3173876 (1965-03-01), Zobrist
patent: 3276586 (1966-10-01), Rosean
patent: 3541005 (1970-11-01), Strathmann et al.
patent: 3541006 (1970-11-01), Bixler et al.
patent: 3546142 (1970-12-01), Michaels et al.
patent: 3845770 (1974-11-01), Theeuwes et al.
patent: 3865108 (1975-02-01), Hartop
patent: 3916899 (1975-11-01), Theeuwes et al.
patent: 4002173 (1977-01-01), Manning et al.
patent: 4063064 (1977-12-01), Saunders et al.
patent: 4077407 (1978-03-01), Theeuwes et al.
patent: 4088864 (1978-05-01), Theeuwes et al.
patent: 4160020 (1979-07-01), Ayer et al.
patent: 4207893 (1980-06-01), Michaels
patent: 4892778 (1990-01-01), Theeuwes et al.
patent: 4915949 (1990-04-01), Wong et al.
patent: 4931285 (1990-06-01), Edgren et al.
patent: 4940465 (1990-07-01), Theeuwes et al.
patent: 5006346 (1991-04-01), Edgren et al.
patent: 5024842 (1991-06-01), Edgren et al.
patent: 5126142 (1992-06-01), Ayer et al.
patent: 5160743 (1992-11-01), Edgren et al.
patent: 5169638 (1992-12-01), Dennis et al.
patent: 5190765 (1993-03-01), Jao et al.
patent: 5252338 (1993-10-01), Jao et al.
patent: 5620705 (1997-04-01), Dong et al.
patent: 5633011 (1997-05-01), Dong et al.
patent: 5660861 (1997-08-01), Jao et al.
patent: 6368626 (2002-04-01), Bhatt et al.
patent: WO 9506460 (1995-03-01), None
Larry Hixon, et al,Chemical Engineering, 94-103, 1990. ., “Sizing Materials by Crushing and Grinding”.
Eugene L. Parrott,Journal of Pharmaceutical Sciences, 61(6):813-829, 1974. “Milling of Pharmaceutical Solids”.
Perry, Green & Maloney Editors,Perry's Chemical Engineers Handbook, 6thEd., “Introduction to Screening and Wet Classification”, pp. 21.13 to 21.19, 1984.
Edward G. Ripple, M.D.,Remington's Pharmaceutical Sciences, 17thEd., Ch. 89, “Powders”, pp. 1585-1602, 1985.
Scott & Roff,Handbook of Common Polymers, CRC Press, Clevaland, OH 1971.
B.P. Rouse, Jr.,Encyclopedia of Polymer Science and Technology, (Interscience Publishers Inc., New York, NY.) 3:325-354, 1964. “Cellulose Esters, Organic”.
Dale E. Wurster,J. Am. Pharm. Assoc, 48(8):451-454, Aug. 1959. “Air-Suspension Technique of Coating Drug Particles”.
Dale E. Wurster,J. Am. Pharm. Assoc, 49(2):82-84, Feb. 1960. “Preparation of Compressed Tablet Granulations by the Air-Suspension Technique II”.
Bhatt Padmanabh
Cruz Evangeline
Yam Noymi
Alta Corporation
Spear James M.
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