Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert J. Kirkham — 2 Patents

Lockheed Martin: 2 patents #1,607 of 6,507Top 25%
Blackfoot, ID: #28 of 96 inventorsTop 30%
Idaho: #3,830 of 8,810 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Robert J. Kirkham has been granted 2 US patents while listed as an inventor at Lockheed Martin. The first was granted in 1997 and the most recent in September 1998. Robert J. Kirkham ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert J. Kirkham in Blackfoot, ID, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5802438 Method for generating a crystalline .sup.99 MoO.sub.3 product and the isolation .sup.99m Tc compositions therefrom Ralph G. Bennett, Jerry D. Christian, Troy J. Tranter 1998-09-01 $26,025,000
5620208 Boltless flange 1997-04-15 $17,408,000