Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Dana R. Patch — 2 Patents

PAPanametrics: 2 patents #13 of 40Top 35%
Medfield, MA: #116 of 236 inventorsTop 50%
Massachusetts: #42,563 of 88,656 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Dana R. Patch has been granted 2 US patents while listed as an inventor at Panametrics. The first was granted in 1981 and the most recent in April 1990. Dana R. Patch ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Dana R. Patch in Medfield, MA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4918990 Ultrasonic transducer assembly Kenneth A. Fowler, Frederick H. Hotchkiss 1990-04-24 $324,000
4297607 Sealed, matched piezoelectric transducer Lawrence C. Lynnworth, Kenneth A. Fowler 1981-10-27