Charles A. Billings

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Concord, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Plastisol sealing gaskets puffed with hollow discrete spheres
- Patent number 4,485,192
- Issue date Nov 27, 1984
- W. R. Grace & Co.
- David A. Gibbs
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sealing compositions for minimizing soluble iron migration
- Patent number 4,278,718
- Issue date Jul 14, 1981
- W. R. Grace & Co.
- Charles A. Billings
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Halocyclopropyl halomethyl ethers
- Patent number 3,995,062
- Issue date Nov 30, 1976
- W. R. Grace & Co.
- Charles A. Billings
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Anesthetic chlorocyclopropanes
- Patent number 3,989,845
- Issue date Nov 2, 1976
- W. R. Grace & Co.
- Charles Alden Billings
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Halocyclopropyl halomethyl ethers
- Patent number 3,932,529
- Issue date Jan 13, 1976
- W. R. Grace & Co.
- Charles A. Billings
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Bromofluorocyclopropanes
- Patent number 3,931,344
- Issue date Jan 6, 1976
- W. R. Grace & Co.
- Charles Alden Billings
- C07 - ORGANIC CHEMISTRY