Patents per Year
Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5246201 | Orifice assembly for gas metering device | — | 1993-09-21 | |
| 4909476 | Orifice assembly for gas metering device | — | 1990-03-20 | |
| 4597684 | Painting roller assembly | Lawrence B. O'Brien | 1986-07-01 | $4,117,000 |
| 4588318 | Painting applicator with remote transmitter control | Lawrence B. O'Brien, Walter F. Winston, Edmund L. Abner, Lowell G. Atkinson, H. Richard Roudebush +2 more | 1986-05-13 | $5,006,000 |
| 4424011 | Painting applicator with remote supply | Lawrence B. O'Brien, Walter F. Winston, Edmund L. Abner, Lowell G. Atkinson, H. Richard Roudebush +2 more | 1984-01-03 | |
| 4315525 | Mixing valve | Gerald E. Christiansen | 1982-02-16 |