Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653271 | Oil and oil filter collection and recycle apparatus | Charles Brittain | 1997-08-05 |
| 5647414 | Curbside oil and oil filter recycle and collection apparatus and method | Charles Brittain | 1997-07-15 |
| 5349901 | Apparatus for the treatment of oil filters for low contaminant recycle | Charles Brittain, Jack D. Brittain | 1994-09-27 |
| 5321877 | Method and apparatus for cutting oil-filter canisters | Charles Brittain | 1994-06-21 |
| 5297332 | Oil filter disassembly and recycling apparatus | Charles Brittain | 1994-03-29 |
| 5245739 | Oil filter disassembly method | Charles Brittain | 1993-09-21 |
| 5182842 | Oil filter disassembly and recycling apparatus | Charles Brittain | 1993-02-02 |
| 5168957 | Vehicle theft deterrent apparatus and method | — | 1992-12-08 |
| 5032625 | Polishable, flame retarded, synthetic mineral product and method | Lonnie F. Risley | 1991-07-16 |
| 4961995 | Polishable, flame retarded, synthetic mineral product | Lonnie F. Risley | 1990-10-09 |
| 4544584 | Cultured onyx products and methods therefor | Theodore E. Stevens | 1985-10-01 |
| 4433070 | Cultured onyx products and methods therefor | Theodore E. Stevens | 1984-02-21 |