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Patents Grantslast 30 patents

Information Patent Grant
Compression apparatus for gaseous refrigerant
- Patent number 6,637,238
- Issue date Oct 28, 2003
- Shell Research Limited
- Hendrik Frans Grootjans
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Method and apparatus for testing bonded tubular joints
- Patent number 6,612,184
- Issue date Sep 2, 2003
- Shell Research Limited
- Jimmy Lawrence Hollingsworth
- G01 - MEASURING TESTING
Information Patent Grant
Herbicidal compounds
- Patent number 5,304,532
- Issue date Apr 19, 1994
- Shell Research Limited
- David Munro
- C07 - ORGANIC CHEMISTRY

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