Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Donald E. Protzmann — 5 Patents

CHChesebrough-Pond'S: 4 patents #8 of 85Top 10%
SMSherwood Medical: 1 patents #94 of 186Top 55%
Litchfield, CT: #17 of 81 inventorsTop 25%
Connecticut: #8,579 of 34,797 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Donald E. Protzmann has been granted 5 US patents while listed as an inventor at Chesebrough-Pond'S. The first was granted in 1984 and the most recent in December 1987. Donald E. Protzmann ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Donald E. Protzmann in Litchfield, CT, US.

Patents per Year

Patents granted per year, 1984 to 1987Bar chart with a peak of 3 patents in 1986.peak 31984: 1 patents19841986: 3 patents19861987: 1 patents1987

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D293215 Electronic thermometer Robert H. Bruno, Laurie J. Burger, Stuart R. Kipperman, Geoffrey R. Mayer, Robert F. Uhl 1987-12-15
4619271 Electronic thermometer with probe isolation chamber Laurie J. Burger, Joel N. Helfer, Robert F. Uhl 1986-10-28 $10,571,000
4588306 Electronic thermometer probe assembly Laurie J. Burger, Robert F. Uhl 1986-05-13 $12,244,000
4572365 Probe cover holding and dispensing arrangement for electronic thermometer Robert H. Bruno, Robert G. Johns, Stuart R. Kipperman, Geoffrey R. Mayer, Robert F. Uhl 1986-02-25 $8,827,000
4439190 Underwater drainage device Ronald P. Roveda, John Uhoch 1984-03-27 $5,174,000