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Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form

Reexamination Certificate

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C424S490000

Reexamination Certificate

active

07368130

ABSTRACT:
A method of forming particles comprises accelerating a stream comprising a liquid; and vibrating the stream, to form particles. The particle may have a diameter that is smaller than the diameter of the nozzle used to form the stream, allowing for the formation of micro- and nano-sized particle.

REFERENCES:
patent: 3579245 (1971-05-01), Berry
patent: 5019400 (1991-05-01), Gombotz et al.
patent: 5344676 (1994-09-01), Kim et al.
patent: 5445666 (1995-08-01), Peschka et al.
patent: 5650173 (1997-07-01), Ramstack et al.
patent: 5654008 (1997-08-01), Herbert et al.
patent: 5667808 (1997-09-01), Johnson et al.
patent: 5674534 (1997-10-01), Zale et al.
patent: 5711968 (1998-01-01), Tracy et al.
patent: 5716644 (1998-02-01), Zale et al.
patent: 5792477 (1998-08-01), Rickey et al.
patent: 5817343 (1998-10-01), Burke
patent: 5891478 (1999-04-01), Johnson et al.
patent: 5912015 (1999-06-01), Bernstein et al.
patent: 5916597 (1999-06-01), Lee et al.
patent: 5916598 (1999-06-01), Rickey et al.
patent: 5922253 (1999-07-01), Herbert et al.
patent: 5989463 (1999-11-01), Tracy et al.
patent: 6051259 (2000-04-01), Johnson et al.
patent: 6060128 (2000-05-01), Kim et al.
patent: 6110503 (2000-08-01), Rickey et al.
patent: 6110921 (2000-08-01), Mesens et al.
patent: 6116516 (2000-09-01), Ganan-Calvo
patent: 6119953 (2000-09-01), Ganan-Calvo et al.
patent: 6153129 (2000-11-01), Herbert et al.
patent: 6174469 (2001-01-01), Ganan-Calvo
patent: 6183781 (2001-02-01), Burke
patent: 6187214 (2001-02-01), Ganan-Calvo
patent: 6189803 (2001-02-01), Ganan-Calvo
patent: 6194006 (2001-02-01), Lyons et al.
patent: 6196525 (2001-03-01), Ganan-Calvo
patent: 6197835 (2001-03-01), Ganan-Calvo
patent: 6224794 (2001-05-01), Amsden et al.
patent: 6669961 (2003-12-01), Kim et al.
patent: 675370 (1990-09-01), None
patent: 27 25 849 (1978-12-01), None
patent: 0 265 924 (1988-05-01), None
patent: WO 97/31691 (1997-09-01), None
patent: WO 99/44735 (1999-09-01), None
K. Kim and R.J. Turnbull, “Generation of charged drops of insulating liquids by electrostatic spraying,” J. Appl. Phys., vol. 47, No. 5, pp. 1964-1969, May 1976.
N. Leelarasamee, S. A. Howard, c. J. Malanga and J. K. H. Ma, A method for the prepration of polylactic acid microcapsules of controlled particle size and drug loading. J. Microencapsul. 5 (1988) 147-157.
N.K. Kim, K. Kim, D.A. Payne, and R.S. Upadhye, “Fabrication of hollow silica aerogel spheres by a droplet generation method and sol-gel processing,” J. Vac. Sci., Technol. A., vol. 7, No. 3 pp. 1181-1184 (1989).
K. Kim, K.Y. Jang and R.S. Upadhye, “Hollow silica spheres of controlled size and porosity by sol-gel processing,” J. Am. Ceram. Soc., 74:8, pp. 1987-1992, (1991).
P. Sansdrap and A. J. Moes, Influence of manufacturing parameters on the size characteristics and the release profiles of nifedipine from poly(DL-lactide-co-glycolide) microspheres. Int. J. Pharm. 98 (1993) 157-164.
K. Shiga, N. Muramatsu and T. Kondo, Preparation of poly(D,L-lactide) and copoly(lactide-glycolide) microspheres of uniform size. J. Pharm. Pharmacol. 48 (1996) 891-895.
B. G. Amsden and M. Goosen, An examination of the factors affecting the size, distribution, and release characteristics of polymer microbeads made using electrostatics. J. Control. Release 43 (1997) 183-196.
B. Amsden, The production of uniformly sized polymer microspheres. Pharm. Res. 16 (1999) 1140-1143.
“Fabrication of PLG microspheres with precisely controlled and monodisperse size distributions” J. Controlled Release 73(1):59-74 (May 18, 2001).
Aldrich Technical Bulletin, AL-203, 1997.
Berkland, C., et al.,J. of Cont. Release, 2001, vol. 73, p. 59-74.
Bittner, B. and Kissel, T.,Microencapsulation, 1999, vol. 16:3, p. 325-341.
Shiga, K. et al.,J. Pharm. Pharmacol., 1996, vol. 48, p. 891-895.

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