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

Fred C. Sittler — 36 Patents

RORosemount: 30 patents #12 of 629Top 2%
RARosemount Analytical: 6 patents #4 of 97Top 5%
Excelsior, MN: #11 of 237 inventorsTop 5%
Minnesota: #1,515 of 52,454 inventorsTop 3%
Overall (All Time): #94,371 of 4,157,543Top 3%
36 Patents All Time

Issued Patents All Time

Showing 26–36 of 36 patents

Patent #TitleCo-InventorsDate
5707150 Apparatus for computing BTU content in a sample of gas 1998-01-13
5541408 Micromachined mass spectrometer 1996-07-30
5502380 Analog weighted binary absolute position encoder including an array of sense resistors each having material responsive to FWX and nonresponsive to flux Kathryn M. Howard 1996-03-26
5482678 Organic chemical sensor 1996-01-09
5401963 Micromachined mass spectrometer 1995-03-28
5221456 Insulated core electrode for pH sensor Barry W. Benton, Lawrence R. Majerus, Donald R. Rutt, Adrian C. Toy 1993-06-22
4990236 Thin film moisture sensing element Radhakrishna M. Neti, Adrian C. Toy 1991-02-05
4909078 Fluid flow detector James H. Crabtree 1990-03-20
4869282 Micromachined valve with polyimide film diaphragm Cynthia R. Nelson 1989-09-26
4808009 Integrated semiconductor resistance temperature sensor and resistive heater Robert C. Bohara 1989-02-28
4791398 Thin film platinum resistance thermometer with high temperature diffusion barrier Adrian C. Toy 1988-12-13