Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JW

Joseph T. Widunas — 8 Patents

CECetus: 3 patents #49 of 213Top 25%
BHBayer Healthcare: 1 patents #4,623 of 8,007Top 60%
Hoffmann-La Roche: 1 patents #1,850 of 3,238Top 60%
MEMetrika: 1 patents #7 of 11Top 65%
PEPerkinelmer: 1 patents #280 of 671Top 45%
San Francisco, CA: #5,478 of 26,999 inventorsTop 25%
California: #73,997 of 386,348 inventorsTop 20%
Overall (All Time): #656,181 of 4,157,543Top 20%
8 Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
8045169 Method and device for measuring reflected optical radiation Raymond T. Hebert, Joel M. Blatt 2011-10-25
7492461 Method and device for measuring reflected optical radiation Raymond T. Hebert, Joel M. Blatt 2009-02-17
5837546 Electronic assay device and method Michael P. Allen, Joel M. Blatt 1998-11-17
5656493 System for automated performance of the polymerase chain reaction Kary B. Mullis, Larry J. Johnson, Richard Leath, Timothy J. Wennberg, Louis M. Mezei 1997-08-12
5333675 Apparatus and method for performing automated amplification of nucleic acid sequences and assays using heating and cooling steps Kary B. Mullis, Larry J. Johnson, Richard Leath, Timothy J. Wennberg, Louis M. Mezei 1994-08-02
5038852 Apparatus and method for performing automated amplification of nucleic acid sequences and assays using heating and cooling steps Larry J. Johnson 1991-08-13
4586546 Liquid handling device and method Louis M. Mezei, Richard W. Reeves, Richard Leath 1986-05-06
4478094 Liquid sample handling system Kari Salomaa, Roy Merrill, Richard Leath, Timothy J. Wennberg 1984-10-23