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USPTO Patent Rankings Data through Dec 31, 2025
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David A. Flanigan — 11 Patents

COConoco: 6 patents #47 of 638Top 8%
THThiokol: 3 patents #44 of 275Top 20%
CPConoco Specialty Products: 1 patents #12 of 23Top 55%
MTMorton Thiokol: 1 patents #77 of 221Top 35%
Ponca City, OK: #29 of 444 inventorsTop 7%
Oklahoma: #932 of 12,736 inventorsTop 8%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
David A. Flanigan has been granted 11 US patents while listed as an inventor at Conoco. The first was granted in 1989 and the most recent in March 1998. David A. Flanigan ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list David A. Flanigan in Ponca City, OK, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5731540 Methods of preparing gas generant formulations Vincent E. Mancini, Michael Harper 1998-03-24 $10,691,000
5531845 Methods of preparing gas generant formulations Vincent E. Mancini, Michael Harper 1996-07-02 $2,127,000
5151079 Method and apparatus for reduction of particle disintegration John D. Boadway 1992-09-29
5107874 Apparatus for cleaning particulate solids Robert E. Williams 1992-04-28
5080721 Process for cleaning particulate solids Robert E. Williams 1992-01-14
5053082 Process and apparatus for cleaning particulate solids Joe K. Heilhecker, Robert E. Williams 1991-10-01
5024160 Rapid burning propellant charge for automobile air bag inflators, rocket motors, and igniters therefor J. B. Canterberry 1991-06-18 $2,600,000
5005655 Partially halogenated ethane solvent removal of oleophylic materials from mineral particles Olaf M. Stokke, Robert B. Ramsey, Jr., Robert E. Williams, John Huycke 1991-04-09
4900445 Low pressure hydrocyclone separator Elwyn Shimoda, James E. Stolhand 1990-02-13
4844817 Low pressure hydrocyclone separator Elwyn Shimoda, James E. Stolhand 1989-07-04
4798142 Rapid buring propellant charge for automobile air bag inflators, rocket motors, and igniters therefor J. B. Canterberry 1989-01-17 $3,816,000