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Paul Korwin
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Flushing, NY, US
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last 30 patents
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Patent Grant
Method and apparatus for storing, mixing and delivering dental amalgam
Patent number
4,470,505
Issue date
Sep 11, 1984
Paul Korwin
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Dental container and amalgam dispensing method
Patent number
4,449,645
Issue date
May 22, 1984
Paul Korwin
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Arrangement for, method of, and device for use in taking dental imp...
Patent number
4,424,034
Issue date
Jan 3, 1984
Paul Korwin
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process to protect process heater casing from corrosion
Patent number
4,020,772
Issue date
May 3, 1977
The Lummus Company
Thomas F. O'Sullivan
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Grant
Device for retaining particulate material in upflow tubes
Patent number
3,990,858
Issue date
Nov 9, 1976
The Lummus Company
Thomas F. O'Sullivan
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL