Petroleum Recovery Institute

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Oilfield in-situ combustion process
- Patent number 5,626,191
- Issue date May 6, 1997
- Petroleum Recovery Institute
- Malcolm Greaves
- E21 - EARTH DRILLING MINING
Information Patent Grant
Process for chemically treating reservoir pyrobitumen to improve pe...
- Patent number 5,513,707
- Issue date May 7, 1996
- Petroleum Recovery Institute
- Jerry C. Shaw
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Oil recovery process
- Patent number 4,217,955
- Issue date Aug 19, 1980
- Petroleum Recovery Institute
- Phillip M. Sigmund
- E21 - EARTH DRILLING MINING

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Trademarklast 30 trademarks

Information Trademark
75670597 - PRIZE
- Serial number 75670597
- Registration number 2601575
- Filing date Mar 29, 1999
- PETROLEUM RECOVERY INSTITUTE
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
75670598 - PRISTINE
- Serial number 75670598
- Registration number 2779765
- Filing date Mar 29, 1999
- PETROLEUM RECOVERY INSTITUTE
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry