Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David R. Barbera — 2 Patents

SCStratus Computer: 2 patents #16 of 72Top 25%
Worcester, MA: #400 of 1,103 inventorsTop 40%
Massachusetts: #42,563 of 88,656 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David R. Barbera has been granted 2 US patents while listed as an inventor at Stratus Computer. The first was granted in 1995 and the most recent in November 1998. David R. Barbera ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David R. Barbera in Worcester, MA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5838899 Digital data processing methods and apparatus for fault isolation William I. Leavitt, Conrad R. Clemson, Jeffrey S. Somers, John M. Chaves, Shawn Adam Clayton 1998-11-17
5479648 Method and apparatus for switching clock signals in a fault-tolerant computer system Franklin M. Savicki, David Edwin Splitz 1995-12-26 $8,634,000