Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2006-08-04
2011-11-22
Alstrum-Acevedo, James H. (Department: 1616)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S046000, C424S400000
Reexamination Certificate
active
08062670
ABSTRACT:
Powder compositions exhibiting improved flow properties. The compositions generally contain a bulk solid material in the form of a powder and surface-modified nanoparticles. Methods of improving the flow of powder compositions and devices and articles made using such compositions are also disclosed.
REFERENCES:
patent: 2801185 (1957-07-01), Iler
patent: 4455205 (1984-06-01), Olson et al.
patent: 4478876 (1984-10-01), Chung
patent: 4486504 (1984-12-01), Chung
patent: 4491508 (1985-01-01), Olson et al.
patent: 4522958 (1985-06-01), Das et al.
patent: 4767726 (1988-08-01), Marshall
patent: 5037579 (1991-08-01), Matchett
patent: 5254330 (1993-10-01), Ganderton et al.
patent: 5258225 (1993-11-01), Katsamberis
patent: 5883029 (1999-03-01), Castle
patent: 6051252 (2000-04-01), Liebowitz et al.
patent: 6329058 (2001-12-01), Arney et al.
patent: 6432526 (2002-08-01), Arney et al.
patent: 6585957 (2003-07-01), Adjei et al.
patent: 6586483 (2003-07-01), Kolb et al.
patent: 7758888 (2010-07-01), Lapidot et al.
patent: 2004/0241101 (2004-12-01), Baran et al.
patent: 2006/0251687 (2006-11-01), Lapidot et al.
patent: 2 203 726 (1997-10-01), None
patent: 1371946 (2002-10-01), None
patent: 196 16 781 (1997-11-01), None
Sigma product data sheet for fumed silica accessed on Jan. 25, 2011 at www.sigmaaldrich.com/etc/medialab/docs/Sigma/Product—Information—Sheet/1/s5505pis.Par.0001.File.tmp/s5505pis.pdf.
Spinhaler photo—accessed on Jan. 26, 2011 at the following URL: www.admit-online.info/en/inhalation-systems/features-of-available-devices/dpi/spinhaler/.
Hino, Tomoaki, et al. “Particle Design of Dry Powder Inhalers,”Pharm Tech Japan, vol. 14, No. 10, (1998) p. 1555-1563.
Kawashima, Y., et al., “A New Powder Design Method to Improve Inhalation Efficiency of Pranlukast Hydrate Dry Powder Aerosols by Surface Modification with Hydroxypropylmethylcellulose Phthalate Nanospheres,”Pharmaceutical Research, vol. 15, No. 11, (1998), p. 1748-1752.
Kawashima, Y., et al., Design of Inhalation Dry Powder of Pranlukast Hydrate to Improve Dispersibility by the Surface Modification with Light Anhydrous Silicic Acid (AEROSIL 200),International Journal of Pharmaceutics, vol. 173, (1998), p. 243-251.
Linsenbuhler, Markus, et al., “An Innovative Dry Powder Coating Process in Non-Polar Liquids Producing Tailor-Made Micro-Particles,”Powder Technology, vol. 158, (2005) p. 3-20.
Article: Carr, Ralph L., “Evaluating Flow Properties of Solids,” Chemical Engineering, Jan. 18, 1965, pp. 163-168.
Standard: ASTM D 6393-99, “Standard Test Method for Bulk Solids Characterization by Carr Indices1,” (1999) pp. 734-740.
Baran, Jr. Jimmie R.
Shinbach Madeline P.
Stefely James S.
Stein Stephen W.
3M Innovative Properties Company
Alstrum-Acevedo James H.
Crooks Stephen L.
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