John Derek Capper

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Cheshire, GB

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Patents Grantslast 30 patents

Information Patent Grant
CFC 12 replacement refrigerant
- Patent number 6,629,419
- Issue date Oct 7, 2003
- Refringerant Products Ltd.
- Richard L. Powell
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
R 22 replacement refrigerant
- Patent number 6,606,868
- Issue date Aug 19, 2003
- Refrigerant Products, Ltd.
- Richard L. Powell
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
R 12 replacement refrigerant
- Patent number 6,604,368
- Issue date Aug 12, 2003
- Refrigerant Products, Ltd.
- Richard L. Powell
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...