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USPTO Patent Rankings Data through Dec 31, 2025
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E. Laurence Libelo — 2 Patents

QUQuestech: 2 patents #5 of 25Top 20%
College Park, MD: #127 of 353 inventorsTop 40%
Maryland: #13,510 of 35,612 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
E. Laurence Libelo has been granted 2 US patents while listed as an inventor at Questech. All of these patents were granted in 1988. E. Laurence Libelo ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list E. Laurence Libelo in College Park, MD, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4767902 Method and apparatus for the microwave joining of ceramic items David E. Palaith 1988-08-30 $253,000
4757172 Method and apparatus for the microwave joining of nonoxide ceramic items David E. Palaith 1988-07-12 $298,000