Frejborg; Frey
Patent Applications and Registrations
Patent applications and USPTO patent grants for Frejborg; Frey.The latest application filed is for "screen cylinder with performance boosting configuration".
- Frejborg; Frey - Queensbury NY
- Frejborg; Frey - Glen Falls NY
- Frejborg; Frey - Glens Falls NY
| Patent | Date |
|---|---|
| Screen cylinder with performance boosting configuration Grant 7,168,570 - Frejborg January 30, 2 | 2007-01-30 |
| Screen cylinder with performance boosting configuration App 20040099583 - Frejborg, Frey | 2004-05-27 |
| Rotating element for screening apparatus with a contour surface produced by a plurality of protrusions in the direction of the axial length of the rotor Grant 5,192,438 - Frejborg * March 9, 1 | 1993-03-09 |
| Rotating element for a screening apparatus with a contour surface Grant 4,950,402 - Frejborg * August 21, 1 | 1990-08-21 |
| Pulp screening apparatus Grant 4,880,540 - Frejborg November 14, 1 | 1989-11-14 |
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