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Patents Grants
last 30 patents
Information
Patent Grant
Continuous production of bovine Maedi-Visna-like viral antigens in...
Patent number
5,112,756
Issue date
May 12, 1992
Canadian Patents and Development Limited
Alain M. P. Bouillant
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method of separating carbonaceous components from particulate coal...
Patent number
4,998,624
Issue date
Mar 12, 1991
Canadian Patents and Development Limited
C. Edward Capes
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Microwave-mediated degradation of PCB wastes
Patent number
4,980,039
Issue date
Dec 25, 1990
Canadian Patents & Development Ltd.
Prasad Aysola
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus for optical imaging using a small, flat, refle...
Patent number
4,948,211
Issue date
Aug 14, 1990
Canadian Patents & Development Ltd.
Thomy H. Nilsson
G02 - OPTICS
Information
Patent Grant
Photochemical production of hydrogen peroxide
Patent number
4,946,566
Issue date
Aug 7, 1990
Canadian Patents & Development Ltd.
R. D. Samuel Stevens
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Dual polarization electromagnetic power reception and conversion sy...
Patent number
4,943,811
Issue date
Jul 24, 1990
Canadian Patents and Development Limited
Adrian W. Alden
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Automatic visual measurement of surface mount device placement
Patent number
4,941,256
Issue date
Jul 17, 1990
Canadian Patents & Development Ltd.
David W. Capson
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
All-optical planar modulator structure with channel waveguides
Patent number
4,941,725
Issue date
Jul 17, 1990
Canadian Patents and Development Limited
Richard J. F. Normandin
G02 - OPTICS
Information
Patent Grant
Instrument to measure the errors of apparent power meters
Patent number
4,937,520
Issue date
Jun 26, 1990
Canadian Patents & Development Ltd.
Rejean J. Arseneau
G01 - MEASURING TESTING
Information
Patent Grant
Phase measurements using pseudo-random code
Patent number
4,933,916
Issue date
Jun 12, 1990
Canadian Patents and Development Limited
George A. May
G01 - MEASURING TESTING
Information
Patent Grant
Distributed coaxial light source producing constant target luminance
Patent number
4,931,866
Issue date
Jun 5, 1990
Canadian Patents and Development Limited
Arthur M. Charlesworth
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Pseudoadiabatic reactor for exothermal catalytic conversions
Patent number
4,929,798
Issue date
May 29, 1990
Canadian Patents & Development Limited
Hugo I. de Lasa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Protease for specific processing of secreted proteins
Patent number
4,929,553
Issue date
May 29, 1990
Canadian Patents & Development Ltd.
Howard Bussey
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Device for controlling stored food insects
Patent number
4,927,635
Issue date
May 22, 1990
Canadian Patents & Development Ltd.
Samuel R. Loschiavo
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Grant
Purification of hemoglobin and modified hemoglobin by affinity chro...
Patent number
4,925,574
Issue date
May 15, 1990
Canadian Patents and Development Limited
Jen-chang Hsia
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Recovery of gold from aqueous solutions
Patent number
4,913,730
Issue date
Apr 3, 1990
Canadian Patents & Development Ltd.
Guy Deschenes
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Cell culture bioreactor
Patent number
4,906,577
Issue date
Mar 6, 1990
Canadian Patents & Development Ltd.
David W. Armstrong
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Explosive entry and cutting device and a method of explosive entry...
Patent number
4,905,601
Issue date
Mar 6, 1990
Canadian Patents & Development Ltd.
Roy E. Gabriel
F42 - AMMUNITION BLASTING
Information
Patent Grant
Toxic strains of the bacterium Bacillus thuringiensis for control o...
Patent number
4,902,507
Issue date
Feb 20, 1990
Canadian Patents & Development Ltd.
Oswald N. Morris
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Grant
Particle injection device for thermal spraying
Patent number
4,901,921
Issue date
Feb 20, 1990
Canadian Patents and Development Limited
Serge Dallaire
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Ferric chloride leach of a metal-sulphide bearing material
Patent number
4,902,344
Issue date
Feb 20, 1990
Canadian Patents & Development Ltd.
Bernard H. Lucas
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Wavelength selective optical devices using optical directional coupler
Patent number
4,900,119
Issue date
Feb 13, 1990
Canadian Patents & Development Ltd.
Kenneth O. Hill
G02 - OPTICS
Information
Patent Grant
Fabrication technique for low-loss fused taper directional couplers...
Patent number
4,895,423
Issue date
Jan 23, 1990
Canadian Patents & Development Limited
Francois Bilodeau
G02 - OPTICS
Information
Patent Grant
High stability bimorph scanning tunneling microscope
Patent number
4,894,537
Issue date
Jan 16, 1990
Canadian Patents & Development Ltd.
Bradford L. Blackford
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Ultrasonic imaging system using bundle of acoustic waveguides
Patent number
4,894,806
Issue date
Jan 16, 1990
Canadian Patents & Development Ltd.
Cheng K. Jen
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Separation of fine solids from petroleum oils and the like
Patent number
4,888,108
Issue date
Dec 19, 1989
Canadian Patents and Development Limited
J. Redmond Farnand
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Recovery and purification of silica
Patent number
4,885,149
Issue date
Dec 5, 1989
Canadian Patents and Development Limited
Anthony S. W. De Freitas
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method of manufacturing discrete fiber reinforced, plastic tube and...
Patent number
4,883,622
Issue date
Nov 28, 1989
Canadian Patents and Development Limited
John M. Dealy
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for the production of fermentable sugars from biomass
Patent number
4,880,473
Issue date
Nov 14, 1989
Canadian Patents & Development Ltd.
Donald S. Scott
C13 - SUGAR INDUSTRY
Information
Patent Grant
Method and apparatus for evaluating the degree of cure in polymeric...
Patent number
4,874,948
Issue date
Oct 17, 1989
Canadian Patents and Development Limited
Paolo Cielo
G01 - MEASURING TESTING
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last 30 patents
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