Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David E. Jech — 5 Patents

BWBrush Wellman: 5 patents #5 of 51Top 10%
Tucson, AZ: #1,284 of 6,004 inventorsTop 25%
Arizona: #6,948 of 32,909 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
David E. Jech has been granted 5 US patents while listed as an inventor at Brush Wellman. The first was granted in 1997 and the most recent in July 2003. David E. Jech ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list David E. Jech in Tucson, AZ, US.

Patents per Year

Patents granted per year, 1997 to 2003Bar chart with a peak of 1 patents in 1997.peak 11997: 1 patents19971998: 1 patents19981999: 1 patents19992000: 1 patents20002003: 1 patents2003

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6589310 High conductivity copper/refractory metal composites and method for making same Mark Opoku-Adusei, Juan Sepulveda 2003-07-08 $2,003,000
6114048 Functionally graded metal substrates and process for making same Jordan P. Frazier, Richard H. Sworden, Juan Sepulveda 2000-09-05 $4,247,000
5993731 Process for making improved net shape or near net shape metal parts Juan Sepulveda, Anthony B. Traversone 1999-11-30 $1,291,000
5826159 Process for retarding spontaneous combustion of powdery mixtures Juan Sepulveda, Anthony B. Traversone 1998-10-20 $2,260,000
5686676 Process for making improved copper/tungsten composites Juan Sepulveda, Anthony B. Traversone 1997-11-11 $1,175,000