Spray-dried microparticles and their use as therapeutic vehicles

United States of America Patent

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Nov 30, 1999
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N/A
app pub date
Jun 7, 1995
filing date
Apr 10, 1991

priority date (Note)
Expired

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Abstract

Microparticles of a water-soluble material, which are smooth and spherical, and at least 90% of which have a mass median particle size of 1 to 10 .mu.m, and which carry a therapeutic or diagnostic agent can successfully be used in dry powder inhalers to deliver the said agent.

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Patent Owner(s)

Patent Owner	Address
QUADRANT DRUG DELIVERY LIMITED	RUDDINGTON NOTTINGHAM

International Classification(s)

A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Heath, David	The Park, GB	17	588
Johnson, Richard A	West Bridgford, GB	123	4081
Senior, Peter J	Near Melbourne, GB	9	492
Sutton, Andrew D	Ruddington, GB	12	408

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Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

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Spray-dried microparticles and their use as therapeutic vehicles

Number of patents in Portfolio can not be more than 2000

United States of America Patent

08487420

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PATENT NO	5993805
SERIAL NO	08487420
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08487420

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