Inventor · disambiguated record
Lawrence M. Douglas
Also filed as: DOUGLAS LAWRENCE M
37 granted patents·322 citations·filing 1974–2010
97Inventor score
Top patents by PatentIndex Score
37 records- 0193US4140381AMultiple format photograhic cameraPOLAROID CORP·Filed 1977·Granted Feb 20, 1979·28 cites·15 claims
- 0292US4064518ACompact self-developing camera with folded optical image pathPOLAROID CORP·Filed 1976·Granted Dec 20, 1977·22 cites·17 claims
- 0385US5946031AElectronic still camera with printing capabilityPOLAROID CORP·Filed 1996·Granted Aug 31, 1999·91 cites·20 claims
- 0479US4068244AFilm advance mechanismPOLAROID CORP·Filed 1976·Granted Jan 10, 1978·11 cites·30 claims
- 0578US3995295AElectro-mechanical shutter system having mechanical latchPOLAROID CORP·Filed 1975·Granted Nov 30, 1976·10 cites·20 claims
- 0677US7507149B1Drill bit dresserDOUGLAS LAWRENCE M·Filed 2008·Granted Mar 24, 2009·7 cites·6 claims
- 0773US7931059B1Through dovetailing jig assemblyDOUGLAS LAWRENCE M·Filed 2010·Granted Apr 26, 2011·3 cites·1 claims
- 0873US7703488B1Through dovetailing jig assemblyDOUGLAS LAWRENCE M·Filed 2007·Granted Apr 27, 2010·5 cites·22 claims
- 0972US4800400AElectronic image printing apparatusPOLAROID CORP·Filed 1988·Granted Jan 24, 1989·25 cites·17 claims
- 1070US5838997APreloaded single-use instant cameraPOLAROID CORP·Filed 1997·Granted Nov 17, 1998·9 cites·26 claims
- 1170US5001502ACamera having film cassette hold back/film exit shadePOLAROID CORP·Filed 1990·Granted Mar 19, 1991·14 cites·7 claims
- 1270US4086604ASelective closure of camera viewfinder and camera incorporating samePOLAROID CORP·Filed 1976·Granted Apr 25, 1978·7 cites·10 claims
- 1366US5023636APivotally mounted spread roller assemblyPOLAROID CORP·Filed 1990·Granted Jun 11, 1991·12 cites·4 claims
- 1464US4175843ADuel focal plane photocellsPOLAROID CORP·Filed 1978·Granted Nov 27, 1979·6 cites·5 claims
- 1561US4249811AFilm advancing apparatusPOLAROID CORP·Filed 1979·Granted Feb 10, 1981·5 cites·5 claims
- 1661US4212524AVarying frictional forces on a film advancing apparatusPOLAROID CORP·Filed 1979·Granted Jul 15, 1980·5 cites·5 claims
- 1758US6006036APreloaded single-use instant cameraPOLAROID CORP·Filed 1998·Granted Dec 21, 1999·5 cites·5 claims
- 1857US6055374AFolding cameraPOLAROID CORP·Filed 1998·Granted Apr 25, 2000·5 cites·20 claims
- 1956US3952312AExposure control system for photographic apparatusPOLAROID CORP·Filed 1974·Granted Apr 20, 1976·4 cites·27 claims
- 2055US6175691B1Multiple mode imaging systemPOLAROID CORP·Filed 1999·Granted Jan 16, 2001·5 cites·9 claims
- 2155US4200367AProjectorPOLAROID CORP·Filed 1978·Granted Apr 29, 1980·4 cites·5 claims
- 2254US4461556AFilm processing apparatus for self-processing film unit with a folded applicatorPOLAROID CORP·Filed 1982·Granted Jul 24, 1984·5 cites·23 claims
- 2350US4452523AMethod of and apparatus for processing filmPOLAROID CORP·Filed 1982·Granted Jun 5, 1984·9 cites·14 claims
- 2447US4032941ALatched shutter system having automatic delay of latch resetPOLAROID CORP·Filed 1975·Granted Jun 28, 1977·3 cites·9 claims
- 2545US4545663AIntegral self-developing film unit and system for use thereofPOLAROID CORP·Filed 1983·Granted Oct 8, 1985·3 cites·23 claims
- 2643US4104659APhotographic apparatus having a spring driven motorPOLAROID CORP·Filed 1977·Granted Aug 1, 1978·2 cites·8 claims
- 2741US5027142ACollapsible cameraPOLAROID CORP·Filed 1990·Granted Jun 25, 1991·3 cites·34 claims
- 2841US4827297APhotographic film assemblage having instant filmPOLAROID CORP·Filed 1988·Granted May 2, 1989·3 cites·9 claims
- 2938US5946502APhotographic apparatusPOLAROID CORP·Filed 1998·Granted Aug 31, 1999·1 cites·11 claims
- 3037US4814801AInstant type camera for receiving a collapsible film cassettePOLAROID CORP·Filed 1988·Granted Mar 21, 1989·2 cites·11 claims
- 3137US4225220ACamera having manually operable dark slide ejection apparatusPOLAROID CORP·Filed 1979·Granted Sep 30, 1980·1 cites·7 claims
- 3236USD333670SFoldable photographic cameraPOLAROID CORP·Filed 1990·Granted Mar 2, 1993·2 cites·1 claims
- 3336US4270855ACamera for taking multiple exposures on a single sheet of filmPOLAROID CORP·Filed 1978·Granted Jun 2, 1981·1 cites·18 claims
- 3435US4052729ACamera with movable film drive and optical unitPOLAROID CORP·Filed 1976·Granted Oct 4, 1977·1 cites·11 claims
- 3534US6055375ASelf-developing cameraPOLAROID CORP·Filed 1998·Granted Apr 25, 2000·1 cites·13 claims
- 3633US5107289AReflex camera having pivotable mirrorPOLAROID CORP·Filed 1990·Granted Apr 21, 1992·1 cites·8 claims
- 3733US4429037ASelf-processing film unit with liquid applicatorPOLAROID CORP·Filed 1982·Granted Jan 31, 1984·1 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →