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

Charles J. Kramer — 32 Patents

HOHolotek: 18 patents #1 of 5Top 20%
Xerox: 12 patents #1,122 of 8,622Top 15%
ECEcrm: 1 patents #9 of 18Top 50%
Pittsford, NY: #61 of 976 inventorsTop 7%
New York: #3,677 of 115,490 inventorsTop 4%
Overall (All Time): #114,373 of 4,157,543Top 3%
32 Patents All Time

Issued Patents All Time

Showing 26–32 of 32 patents

Patent #TitleCo-InventorsDate
4321630 Linear integrating cavity light collector 1982-03-23
4314283 Diffraction based light collector 1982-02-02
4304459 Reflective holographic scanning system insensitive to spinner wobble effects 1981-12-08
4289371 Optical scanner using plane linear diffraction gratings on a rotating spinner 1981-09-15
4257016 Piezo-optic, total internal reflection modulator Ned J. Seachman 1981-03-17
4243293 Holographic scanner insensitive to mechanical wobble 1981-01-06
4239326 Holographic scanner for reconstructing a scanning light spot insensitive to a mechanical wobble 1980-12-16