Leffew; Kenneth W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Leffew; Kenneth W..The latest application filed is for "apparatus for forming crystalline polymer pellets".
- Leffew; Kenneth W. - Kennett Square PA
| Patent | Date |
|---|---|
| Apparatus for forming crystalline polymer pellets Grant 5,633,018 - Stouffer , et al. May 27, 1 | 1997-05-27 |
| Process for pellet formation from amorphous polyester Grant 5,540,868 - Stouffer , et al. July 30, 1 | 1996-07-30 |
| Production of poly(ethylene terephthalate) Grant 5,532,333 - Stouffer , et al. July 2, 1 | 1996-07-02 |
| Production of poly(ethylene terephthalate) Grant 5,510,454 - Stouffer , et al. April 23, 1 | 1996-04-23 |
| Method of producing a high solids replenishable liquid developer containing a friable toner resin Grant 5,206,108 - Felder , et al. April 27, 1 | 1993-04-27 |
| Continuous process for preparing resin particles in a liquid Grant 5,017,451 - Larson , et al. May 21, 1 | 1991-05-21 |
| Thickness control system having a duty cycle controller Grant 4,804,557 - Anthony, Jr. , et al. February 14, 1 | 1989-02-14 |
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