Inventor

David R. Williams

Inventor

San Diego, CA, US

Overview

18→

Patents

1977–2004

Patent span

Human necessities

Primary field (CPC A)

Patents· 18 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Mprimary

A61MDevices for introducing media into, or onto, the body18%

A61KPreparations for medical, dental or toiletry purposes15%

C07HSugars10%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations8%

A23KFodder5%

C12NMicroorganisms or enzymes5%

A61BDiagnosis3%

A61FFilters implantable into blood vessels3%

PatentTitleYear

6,692,695'Industrial scale barrier technology for preservation of sensitive biological materials'2004 6,306,345'Industrial scale barrier technology for preservation of sensitive biological materials at ambient temperatures'2001 6,171,335'Heart valve prosthesis'2001 6,055,980'Dry powder inhaler'2000 5,814,615'Antibiotic LL-E19020 Alpha.sub.1'1998 5,814,613'Antibiotic LL-E19020 gamma'1998 5,577,497'Dry powder inhaler'1996 5,492,112'Dry powder inhaler'1996 5,332,124'Multi-cavity dispensing refill cartridge'1994 5,327,883'Apparatus for aerosolizing powdered medicine and process and using'1994 5,277,195'Portable spirometer'1994 5,263,596'Medication dispenser station sub-assembly'1993 5,188,945'Recovery process for antibiotics LL-E19020 alpha and beta'1993 4,936,760'Volumetric infusion pump'1990 4,856,339'Medical infusion pump with sensors'1989 4,758,228'Medical infusion pump with sensors'1988 4,291,026'Antibiotic BM123.nu. pamoate complexes'1981 4,064,362'Hearing protector'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1993Patents assigned to AMERICAN CYANAMID CO (2)· patent assignee history

1981–1998Based in Stony Point, NY, US· patent location history

1988–1989Patents assigned to CENTAUR SCIENCES INC (2)· patent assignee history

1988–2000Based in San Diego, CA, US· patent location history

1990–1993Patents assigned to WILLIAMS DAVID R (2)· patent assignee history

1994–2000Patents assigned to DURA PHARMA INC (5)· patent assignee history

1994Based in Monroe, CT, US· patent location history

1996–2004Based in Temecula, CA, US· patent location history

1998Patents assigned to ROCHE VITAMINS INC (2)· patent assignee history

2001Based in Frodsham, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DURA PHARMA INC	5	1994–2000
AMERICAN CYANAMID CO	2	1981–1993
CENTAUR SCIENCES INC	2	1988–1989
ROCHE VITAMINS INC	2	1998
WILLIAMS DAVID Rself	2	1990–1993

Locations

Location	Patents	Span
San Diego, California, US	8	1988–2000
Stony Point, New York, US	4	1981–1998
Temecula, California, US	3	1996–2004
Frodsham, GB	1	2001
Monroe, CT, US	1	1994