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

Mark B. Knudson

ENEnteromedics: 35 patents #1 of 30Top 4%
RMRestore Medical: 23 patents #2 of 19Top 15%
PMPi Medical: 15 patents #1 of 30Top 4%
HEHeartstent: 10 patents #2 of 14Top 15%
INInteg: 9 patents #6 of 19Top 35%
MFMayo Foundation: 8 patents #114 of 1,749Top 7%
CMCortrak Medical: 7 patents #2 of 8Top 25%
Medtronic: 6 patents #1,567 of 6,325Top 25%
PEPercardia: 3 patents #8 of 34Top 25%
RLReshape Lifesciences: 3 patents #13 of 25Top 55%
APAccess Pharmaceuticals: 2 patents #4 of 22Top 20%
CPCardiac Pacemakers: 1 patents #841 of 1,214Top 70%
VEVesture: 1 patents #103 of 204Top 55%
Shoreview, MN: #9 of 657 inventorsTop 2%
Minnesota: #111 of 52,454 inventorsTop 1%
Overall (All Time): #8,269 of 4,157,543Top 1%
131 Patents All Time

Issued Patents All Time

Showing 126–131 of 131 patents

Patent #TitleCo-InventorsDate
5115133 Testing of body fluid constituents through measuring light reflected from tympanic membrane 1992-05-19
5079421 Invasive FTIR blood constituent testing James Edward Shapland 1992-01-07
D292229 Disposable sensor card with receptacle and electrode sensors for chemical analysis of biological fluids Walter L. Sembrowich, Scott W. Carlson, Richard L. Little, Ronald E. Eibensteiner, Richard W. Baker 1987-10-06
D288478 Clinical chemistry analyzer Scott W. Carlson, Walter L. Sembrowich, Richard L. Little, Ronald E. Eibensteiner, Logan W. Johnson +1 more 1987-02-24
4549951 Ion selective electrode Walter L. Sembrowich, Vinodhini Guruswamy 1985-10-29
4313442 Atrial rate sensitive cardiac pacer apparatus David C. Amundson 1982-02-02