Cohen; Douglas J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cohen; Douglas J..The latest application filed is for "apparatus for sizing and separating particulate material".
- Cohen; Douglas J. - Bexley OH
- Cohen; Douglas J. - Columbus OH
| Patent | Date |
|---|---|
| Apparatus for sizing and separating particulate material Grant 9,186,681 - Cohen November 17, 2 | 2015-11-17 |
| Apparatus For Sizing And Separating Particulate Material App 20140158798 - Cohen; Douglas J. | 2014-06-12 |
| Lifting lid crusher Grant 7,229,041 - Cohen , et al. June 12, 2 | 2007-06-12 |
| Screening apparatus with hammermill Grant 7,121,487 - Cohen , et al. October 17, 2 | 2006-10-17 |
| Lifting lid crusher App 20060086850 - Cohen; Douglas J. ; et al. | 2006-04-27 |
| Screening apparatus with hammermill App 20050045052 - Cohen, Douglas J. ; et al. | 2005-03-03 |
| Screening machine Grant 6,698,594 - Cohen , et al. March 2, 2 | 2004-03-02 |
| Portable screening plant with displaceable eccentric Grant 6,669,026 - Cohen , et al. December 30, 2 | 2003-12-30 |
| Screening machine App 20030173265 - Cohen, Douglas J. ; et al. | 2003-09-18 |
| Portable screening plant with displaceable eccentric App 20020195378 - Cohen, Douglas J. ; et al. | 2002-12-26 |
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