Mattson; Roy D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Mattson; Roy D..The latest application filed is for "air directing ring for fluid spray gun air cap".
- Mattson; Roy D. - White Bear Lake MN
| Patent | Date |
|---|---|
| Air directing ring for fluid spray gun air cap Grant 5,169,070 - Mattson December 8, 1 | 1992-12-08 |
| Ball and socket attachment for fluid spray gun plunger Grant 4,959,159 - Mattson September 25, 1 | 1990-09-25 |
| Adjustable fluid spray gun with air transition nozzle Grant 4,934,602 - Mattson June 19, 1 | 1990-06-19 |
| Adjustable fluid spray gun Grant 4,817,872 - Mattson April 4, 1 | 1989-04-04 |
| Composition for skin care Grant 4,738,987 - Mattson , et al. April 19, 1 | 1988-04-19 |
| Adjustable firmness cushion with multiple layered foam-filled compartments Grant 4,371,997 - Mattson February 8, 1 | 1983-02-08 |
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