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USPTO Patent Rankings Data through Dec 31, 2025
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John Petracca — 3 Patents

ZYZymark: 3 patents #9 of 25Top 40%
Upton, MA: #90 of 222 inventorsTop 45%
Massachusetts: #33,867 of 88,656 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John Petracca has been granted 3 US patents while listed as an inventor at Zymark. All of these patents were granted in 1995. John Petracca ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John Petracca in Upton, MA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5415489 Reciprocating driver apparatus Burleigh M. Hutchins, Raymond R. Dunlap, Timothy J. Conklin, Bruce A. Swanson, Louis Abhrahams +1 more 1995-05-16
5393420 Liquid chromatography system Burleigh M. Hutchins, Raymond R. Dunlap, Timothy J. Conklin, Bruce A. Swanson, Louis Abrahams +1 more 1995-02-28
5393434 Liquid chromatography method Burleigh M. Hutchins, Raymond R. Dunlap, Timothy J. Conklin, Bruce A. Swanson, Louis Abrahams +1 more 1995-02-28