Gregory Campbell

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Coatesville, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Spent coffee grounds as a lubricant in a method of pelleting of wood
- Patent number 11,135,738
- Issue date Oct 5, 2021
- Gregory Campbell
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...

Patents Applicationslast 30 patents

Information Patent Application
Spent Coffee Grounds as a Lubricant in A Method of Pelleting of Wood
- Publication number 20200262100
- Publication date Aug 20, 2020
- Gregory Campbell
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Application
Spent Coffee Grounds as a Lubricant in Pelleting of Wood
- Publication number 20200263103
- Publication date Aug 20, 2020
- Gregory Campbell
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...