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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RF

Robert E. Fitch — 7 Patents

The Boeing: 5 patents #2,354 of 15,756Top 15%
Kent, WA: #128 of 929 inventorsTop 15%
Washington: #14,787 of 76,902 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Robert E. Fitch has been granted 7 US patents while listed as an inventor at The Boeing. The first was granted in 1980 and the most recent in September 1991. Robert E. Fitch ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Robert E. Fitch in Kent, WA, US.

Patents per Year

Patents granted per year, 1980 to 1991Bar chart with a peak of 5 patents in 1982.peak 51980: 1 patents19801982: 5 patents19821991: 1 patents1991

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5050874 Swing training and exercising apparatus 1991-09-24
4332206 Afterburner for combustion of starved-air combustor fuel gas containing suspended solid fuel and fly ash Gordon H. Tucker 1982-06-01 $5,228,000
4331086 Hot gas recycle for starved-air combustor Gordon H. Tucker 1982-05-25 $1,842,000
4331085 Exit gas control for flame stabilization and performance tuning of starved-air auger combustor Robert C. Tyer, Gordon H. Tucker 1982-05-25
4331084 Fuel feed technique for auger combustor Robert C. Tyer 1982-05-25 $1,842,000
4315468 Control system for a single auger starved-air combustor Robert C. Tyer, Gordon H. Tucker 1982-02-16 $3,950,000
4235281 Condenser/evaporator heat exchange apparatus and method of utilizing the same Clifford R. Perry 1980-11-25 $5,857,000