Inventor · disambiguated record
Frederic J. Kahn
Also filed as: KAHN FREDERIC J · KAHN FREDERIC JAY
12 granted patents·459 citations·filing 1974–1991
92Inventor score
Top patents by PatentIndex Score
12 records- 0195US5056895AActive matrix liquid crystal liquid crystal light valve including a dielectric mirror upon a leveling layer and having fringing fieldsGREYHAWK SYSTEMS INC·Filed 1990·Granted Oct 15, 1991·249 cites·21 claims
- 0286US5080467ABiphenyl derivatives for photostabilization in pulsed optical darkening apparatus and methodGREYHAWK SYSTEMS INC·Filed 1990·Granted Jan 14, 1992·58 cites·14 claims
- 0380US5085506AApparatus and method of forming and projecting high precision optical imagesGREYHAWK SYSTEMS INC·Filed 1990·Granted Feb 4, 1992·23 cites·7 claims
- 0480US4405993ALiquid crystal disc memory systemHEWLETT PACKARD CO·Filed 1981·Granted Sep 20, 1983·23 cites·18 claims
- 0579US5138368AFabrication of printed wiring boards by projection imagingGREYHAWK SYSTEMS INC·Filed 1989·Granted Aug 11, 1992·35 cites·25 claims
- 0679US4818098AApparatus and method of forming and projecting high precision optical imagesGREYHAWK SYSTEMS INC·Filed 1986·Granted Apr 4, 1989·18 cites·27 claims
- 0761US5140448AApparatus for and method of operation of smectic liquid crystal light valve having scattering centersGREYHAWK SYSTEMS INC·Filed 1990·Granted Aug 18, 1992·25 cites·16 claims
- 0855US4059340ADoped liquid crystal display deviceBELL TELEPHONE LABOR INC·Filed 1974·Granted Nov 22, 1977·9 cites·1 claims
- 0954US4396997ALiquid crystal information storage and retrieval systemHEWLETT PACKARD CO·Filed 1981·Granted Aug 2, 1983·8 cites·13 claims
- 1052US4969734AApparatus and method of forming and projecting high precision optical imagesGREYHAWK SYSTEMS INC·Filed 1988·Granted Nov 13, 1990·6 cites·11 claims
- 1140US5116110APartially coherent optical system with scattering type objectGREYHAWK SYSTEMS INC·Filed 1989·Granted May 26, 1992·5 cites·14 claims
- 1229US5260720AImage formation systemSHARP KK·Filed 1991·Granted Nov 9, 1993·0 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Frederic J. Kahn files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →