Assignee
CANADIAN PATENTS DEV
501 granted patents·18,638 citations·filing 1971–1989
Top patents by PatentIndex Score
501 records- 0199US4542449ALighting panel with opposed 45° corrugationsCANADIAN PATENTS DEV·Filed 1983·Granted Sep 17, 1985·373 cites·5 claims
- 0299US4260220APrism light guide having surfaces which are in octatureCANADIAN PATENTS DEV·Filed 1979·Granted Apr 7, 1981·244 cites·12 claims
- 0399US4026632AFrequency selective interwaveguide couplerCANADIAN PATENTS DEV·Filed 1976·Granted May 31, 1977·279 cites·7 claims
- 0498US4615579APrism light guide luminaireCANADIAN PATENTS DEV·Filed 1983·Granted Oct 7, 1986·169 cites·10 claims
- 0598US4567602ACorrelated signal processorCANADIAN PATENTS DEV·Filed 1983·Granted Jan 28, 1986·218 cites·14 claims
- 0698US4452773AMagnetic iron-dextran microspheresCANADIAN PATENTS DEV·Filed 1982·Granted Jun 5, 1984·915 cites·31 claims
- 0798US4350879ATime jitter determining apparatusCANADIAN PATENTS DEV·Filed 1979·Granted Sep 21, 1982·133 cites·14 claims
- 0897US4826299ALinear deiverging lensCANADIAN PATENTS DEV·Filed 1987·Granted May 2, 1989·237 cites·12 claims
- 0997US4763977AOptical fiber coupler with tunable coupling ratio and method of makingCANADIAN PATENTS DEV·Filed 1985·Granted Aug 16, 1988·192 cites·11 claims
- 1096US4618735AProcess and apparatus for the conversion of sludgesCANADIAN PATENTS DEV·Filed 1984·Granted Oct 21, 1986·124 cites·14 claims
- 1196US4291940ALow loss access coupler for multimode optical fiber distribution systemsCANADIAN PATENTS DEV·Filed 1977·Granted Sep 29, 1981·112 cites·9 claims
- 1295US4900119AWavelength selective optical devices using optical directional couplerCANADIAN PATENTS DEV·Filed 1988·Granted Feb 13, 1990·151 cites·10 claims
- 1395US4627734AThree dimensional imaging method and deviceCANADIAN PATENTS DEV·Filed 1986·Granted Dec 9, 1986·131 cites·22 claims
- 1495US4474427AOptical fiber reflective filterCANADIAN PATENTS DEV·Filed 1979·Granted Oct 2, 1984·85 cites·17 claims
- 1595US4118305AApparatus for electrochemical reactionsCANADIAN PATENTS DEV·Filed 1976·Granted Oct 3, 1978·63 cites·9 claims
- 1695US4107628ACW Brillouin ring laserCANADIAN PATENTS DEV·Filed 1977·Granted Aug 15, 1978·47 cites·5 claims
- 1795US3969201AElectrolytic production of alkaline peroxide solutionsCANADIAN PATENTS DEV·Filed 1975·Granted Jul 13, 1976·69 cites·16 claims
- 1894US5009486AForm depicting, optical interference authenticating deviceCANADIAN PATENTS DEV·Filed 1989·Granted Apr 23, 1991·177 cites·13 claims
- 1994US4880473AProcess for the production of fermentable sugars from biomassCANADIAN PATENTS DEV·Filed 1988·Granted Nov 14, 1989·105 cites·8 claims
- 2094US4644565ASuperposed quadrature modulated baseband signal processorCANADIAN PATENTS DEV·Filed 1984·Granted Feb 17, 1987·195 cites·20 claims
- 2194US4640767AHydrocarbon extraction agents and microbiological processes for their productionCANADIAN PATENTS DEV·Filed 1984·Granted Feb 3, 1987·96 cites·8 claims
- 2294US4356170AImmunogenic polysaccharide-protein conjugatesCANADIAN PATENTS DEV·Filed 1981·Granted Oct 26, 1982·448 cites·26 claims
- 2394US3952577AApparatus for measuring the flow rate and/or viscous characteristics of fluidsCANADIAN PATENTS DEV·Filed 1975·Granted Apr 27, 1976·123 cites·38 claims
- 2493US4913730ARecovery of gold from aqueous solutionsCANADIAN PATENTS DEV·Filed 1988·Granted Apr 3, 1990·84 cites·17 claims
- 2593US4707064AOptical mixing/demixing deviceCANADIAN PATENTS DEV·Filed 1986·Granted Nov 17, 1987·103 cites·7 claims
- 2693US4700197AAdaptive array antennaCANADIAN PATENTS DEV·Filed 1986·Granted Oct 13, 1987·204 cites·12 claims
- 2793US4659224AOptical interferometric reception of ultrasonic energyCANADIAN PATENTS DEV·Filed 1985·Granted Apr 21, 1987·105 cites·20 claims
- 2893US4414621AInteractive visual communications systemCANADIAN PATENTS DEV·Filed 1981·Granted Nov 8, 1983·250 cites·8 claims
- 2993US4158656AOilseed processingCANADIAN PATENTS DEV·Filed 1978·Granted Jun 19, 1979·142 cites·11 claims
- 3092US4752946AGas discharge derived annular plasma pinch x-ray sourceCANADIAN PATENTS DEV·Filed 1986·Granted Jun 21, 1988·108 cites·16 claims
- 3192US4748329AMethod for on-line thickness monitoring of a transparent filmCANADIAN PATENTS DEV·Filed 1987·Granted May 31, 1988·86 cites·18 claims
- 3292US4651716AMethod and device for enhancement of cardiac contractilityCANADIAN PATENTS DEV·Filed 1985·Granted Mar 24, 1987·226 cites·10 claims
- 3392US4633715ALaser heterodyne interferometric method and system for measuring ultrasonic displacementsCANADIAN PATENTS DEV·Filed 1985·Granted Jan 6, 1987·97 cites·26 claims
- 3492US4481640ASpread spectrum modemCANADIAN PATENTS DEV·Filed 1982·Granted Nov 6, 1984·134 cites·21 claims
- 3592US4480082AEpoxy resin fortifiers based on aromatic amidesCANADIAN PATENTS DEV·Filed 1983·Granted Oct 30, 1984·102 cites·17 claims
- 3692US4424346ADerivatives of chitins, chitosans and other polysaccharidesCANADIAN PATENTS DEV·Filed 1981·Granted Jan 3, 1984·115 cites·10 claims
- 3792US4347686AFin-stabilized container of foldable sheet materialCANADIAN PATENTS DEV·Filed 1978·Granted Sep 7, 1982·339 cites·8 claims
- 3892US4219847AMethod and apparatus of determining the center of area or centroid of a geometrical area of unspecified shape lying in a larger x-y scan fieldCANADIAN PATENTS DEV·Filed 1979·Granted Aug 26, 1980·211 cites·1 claims
- 3992US4084905AApparatus for detecting and measuring fluorescence emissionCANADIAN PATENTS DEV·Filed 1976·Granted Apr 18, 1978·80 cites·1 claims
- 4092US4076578AInk removal from waste paperCANADIAN PATENTS DEV·Filed 1976·Granted Feb 28, 1978·48 cites·22 claims
- 4192US3975194AFormation of hollow spherical articlesCANADIAN PATENTS DEV·Filed 1974·Granted Aug 17, 1976·77 cites·13 claims
- 4291US5056922AMethod and apparatus for monitoring the surface profile of a moving workpieceCANADIAN PATENTS DEV·Filed 1989·Granted Oct 15, 1991·71 cites·13 claims
- 4391US4751723AMultiple vacuum arc derived plasma pinch x-ray sourceCANADIAN PATENTS DEV·Filed 1986·Granted Jun 14, 1988·96 cites·11 claims
- 4491US4462001ABaseband linearizer for wideband, high power, nonlinear amplifiersCANADIAN PATENTS DEV·Filed 1982·Granted Jul 24, 1984·115 cites·4 claims
- 4591US4027185AHigh intensity radiation sourceCANADIAN PATENTS DEV·Filed 1975·Granted May 31, 1977·45 cites·11 claims
- 4690US4788080AProcess and apparatus for coating particles with fine powderCANADIAN PATENTS DEV·Filed 1987·Granted Nov 29, 1988·79 cites·19 claims
- 4790US4727136AModified meningococcal group B polysaccharide for conjugate vaccineCANADIAN PATENTS DEV·Filed 1985·Granted Feb 23, 1988·124 cites·8 claims
- 4890US4336435AMicrowave apparatus for heating liquid in a closed plastic containerCANADIAN PATENTS DEV·Filed 1981·Granted Jun 22, 1982·107 cites·13 claims
- 4990US4029567ASolids recovery from coal liquefaction slurryCANADIAN PATENTS DEV·Filed 1976·Granted Jun 14, 1977·61 cites·12 claims
- 5090US4027536ATransducer for engine fuel injection monitoringCANADIAN PATENTS DEV·Filed 1976·Granted Jun 7, 1977·41 cites·8 claims
Showing the top 50 of 501 patent records by PatentIndex Score.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →