Inventor
KNOP KARL H
CH14 patents
⚠️ This page may combine multiple inventors who share the name “KNOP KARL H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RCA CORP
13 patentsUS4417784ANov 29, 1983
Multiple image encoding using surface relief structures as authenticating device for sheet-material authenticated item
RCA CORP182 citations98
US4506949AMar 26, 1985
Diffractive color separation filter
RCA CORP61 citations96
US4668080AMay 26, 1987
Method and apparatus for forming large area high resolution patterns
RCA CORP54 citations95
US4484797ANov 27, 1984
Diffractive subtractive color filter responsive to angle of incidence of polychromatic illuminating light
RCA CORP122 citations93
US4661983AApr 28, 1987
Secure document identification technique
RCA CORP49 citations92
US4464030AAug 7, 1984
Dynamic accuracy X-Y positioning table for use in a high precision light-spot writing system
RCA CORP28 citations92
US4426130AJan 17, 1984
Semi-thick transmissive and reflective sinusoidal phase grating structures
RCA CORP49 citations92
US4318123AMar 2, 1982
Solid-state, color-encoding television camera
RCA CORP38 citations92
US4255019AMar 10, 1981
Diffractive color filter
RCA CORP37 citations92
US4591900AMay 27, 1986
Encoding pattern for single chip CCD camera processing scheme
RCA CORP126 citations91
US4576439AMar 18, 1986
Reflective diffractive authenticating device
RCA CORP54 citations90
US4630105ADec 16, 1986
Symmetric color encoding shift pattern for a solid-state imager camera and decoding scheme therefor
RCA CORP10 citations73
US4546380AOct 8, 1985
Solid-state color-encoding television camera
RCA CORP19 citations73