Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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David A. Townzen — 5 Patents

KIKaye Instruments: 5 patents #2 of 7Top 30%
Massachusetts: #23,459 of 88,656 inventorsTop 30%
Overall (All Time): #1,066,297 of 4,157,543Top 30%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4481596 Method of and apparatus for automatically compensating for variations in output response characteristics of sensors and the like 1984-11-06
4359746 Zero level correction apparatus Robert E. Goldschmidt, Charles C. Ku 1982-11-16
4359747 Thermocouple recorder Robert E. Goldschmidt, Charles C. Ku 1982-11-16
4359751 Stepper motor for data recorder Robert E. Goldschmidt, Charles C. Ku 1982-11-16
4329693 Method of and apparatus for data recording and the like Robert E. Goldschmidt, Charles C. Ku 1982-05-11