Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Stephen J. Prosser — 9 Patents

PHPhysio-Control: 8 patents #52 of 303Top 20%
EMEmi: 1 patents #32 of 137Top 25%
Sharp Kabushiki Kaisha: 1 patents #6,861 of 10,731Top 65%
Lynnwood, WA: #60 of 647 inventorsTop 10%
Washington: #11,701 of 76,902 inventorsTop 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Stephen J. Prosser has been granted 9 US patents while listed as an inventor at Physio-Control. The first was granted in 1989 and the most recent in February 1994. Stephen J. Prosser ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Stephen J. Prosser in Lynnwood, WA, US.

Patents per Year

Patents granted per year, 1989 to 1994Bar chart with a peak of 3 patents in 1989.peak 31989: 3 patents19891990: 2 patents19901991: 1 patents19911993: 2 patents19931994: 1 patents1994

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
5285782 Method and apparatus for improving the accuracy of pulse transmittance oximeter 1994-02-15
5259381 Apparatus for the automatic calibration of signals employed in oximetry Peter W. Cheung, Karl F. Gauglitz, Scott W. Hunsaker, Darrell Wagner, Robert E. Smith, III 1993-11-09
5246002 Noise insensitive pulse transmittance oximeter 1993-09-21
5004700 Humidity sensor Brian C. Webb, Derek G. Pedley, Masaya Hijikigawa, Hisatoshi Furubayashi 1991-04-02
4913150 Method and apparatus for the automatic calibration of signals employed in oximetry Peter W. Cheung, Karl F. Gauglitz, Scott W. Hunsaker, Darrell Wagner, Robert E. Smith, III 1990-04-03
4892101 Method and apparatus for offsetting baseline portion of oximeter signal Peter W. Cheung, Karl F. Gauglitz, Lee R. Mason, Robert E. Smith, III, Darrell Wagner +1 more 1990-01-09
4869253 Method and apparatus for indicating perfusion and oxygen saturation trends in oximetry Kenneth C. Craig, Jr., Karl F. Gauglitz, G. Michael Losh, Lee R. Mason, Richard C. Nova +1 more 1989-09-26
4859056 Multiple-pulse method and apparatus for use in oximetry Robert E. Smith, III 1989-08-22
4819646 Feedback-controlled method and apparatus for processing signals used in oximetry Peter W. Cheung, Karl F. Gauglitz, Lee R. Mason, Robert E. Smith, III, Darrell Wagner +1 more 1989-04-11