Roger A. Shefford

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Aldershot, GB

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Patents Grantslast 30 patents

Information Patent Grant
Enclosure member consisting essentially of solid, non-aromatic poly...
- Patent number 4,503,103
- Issue date Mar 5, 1985
- Koninklijke Emballage Industrie Van Leer B.V.
- Roger A. Shefford
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Enclosure member substantially impermeable to the transmission of s...
- Patent number 4,371,574
- Issue date Feb 1, 1983
- Koninklijke Emballage Industrie Van Leer B.V.
- Roger A. Shefford
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Enclosure member substantially impermeable to the transmission of s...
- Patent number 4,348,436
- Issue date Sep 7, 1982
- Koninklijke Emballage Industrie Van Leer B.V.
- Roger A. Shefford
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...