Howard M. Relles

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Rexford, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Polyetherimides prepared by self-condensation of hydroxyaryl phthal...
- Patent number 4,297,474
- Issue date Oct 27, 1981
- General Electric Company
- Frank J. Williams
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid extraction method for recovering aromatic bisimides
- Patent number 4,247,464
- Issue date Jan 27, 1981
- General Electric Company
- Howard M. Relles
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aromatic polyformal-polycarbonate block polymers and method for mak...
- Patent number 4,210,731
- Issue date Jul 1, 1980
- General Electric Company
- Howard M. Relles
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparation of aromatic bisimides
- Patent number 4,054,577
- Issue date Oct 18, 1977
- General Electric Company
- Howard M. Relles
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of aromatic tetracarboxylic acids
- Patent number 4,020,069
- Issue date Apr 26, 1977
- General Electric Company
- Donald S. Johnson
- C07 - ORGANIC CHEMISTRY