Inventor

SEIDER ROBERT J

8 patents

⚠️ This page may combine multiple inventors who share the name “SEIDER ROBERT J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CARBORUNDUM CO

2 patents

US4157898AJun 12, 1979

Fused aluminum oxide abrasive grain containing reduced titanium oxide

CARBORUNDUM CO71 citations94

US4111668ASep 5, 1978

Fused aluminum oxide abrasive grain containing reduced titanium oxide

CARBORUNDUM CO61 citations91

WASHINGTON MILLS ELECTRO MINER

2 patents

US5143522ASep 1, 1992

Abrasive products containing fused alumina zirconia and reduced titania

WASHINGTON MILLS ELECTRO MINER84 citations93

US5161696ANov 10, 1992

Method and apparatus for separating shapes of abrasive grains

WASHINGTON MILLS ELECTRO MINER27 citations89

ELECTRO MINERALS CANADA INC

2 patents

US4810368AMar 7, 1989

Automatic method for separating and cleaning silicon carbide furnace materials

ELECTRO MINERALS CANADA INC13 citations68

US4686032AAug 11, 1987

Automatic method for separating and cleaning silicon carbide furnace materials

ELECTRO MINERALS CANADA INC3 citations57

MINNESOTA MINING & MFG

1 patent

US5770145AJun 23, 1998

Superior high alkali metal and calcium sol gel abrasive and processes for its production

MINNESOTA MINING & MFG17 citations81

KENNECOTT CORP

1 patent

US4659022AApr 21, 1987

Production of silicon carbide with automatic separation of a high grade fraction

KENNECOTT CORP6 citations59