Paul R. Schweyen

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Tonawanda, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Tearable flexible coated abrasive product
- Patent number 4,663,223
- Issue date May 5, 1987
- Carborundum Abrasives Company
- Paul R. Schweyen
- B24 - GRINDING POLISHING
Information Patent Grant
Method of preparing flexible backing material for use in coated abr...
- Patent number 4,478,610
- Issue date Oct 23, 1984
- Carborundum Abrasives Company
- Dhan N. Parekh
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Flexible backing material for use in coated abrasives
- Patent number 4,437,865
- Issue date Mar 20, 1984
- Carborundum Abrasive Company
- Dhan N. Parekh
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...