ROBERSON; Clyde T.
Patent Applications and Registrations
Patent applications and USPTO patent grants for ROBERSON; Clyde T..The latest application filed is for "key and key blanks operable in vertically and horizontally oriented keyways".
- ROBERSON; Clyde T. - Salem VA
| Patent | Date |
|---|---|
| Key And Key Blanks Operable In Vertically And Horizontally Oriented Keyways App 20210230901 - DUCKWALL; Thomas ; et al. | 2021-07-29 |
| Key with movable element disposed within key blade Grant 9,045,915 - Field , et al. June 2, 2 | 2015-06-02 |
| Key With Movable Element Disposed Within Key Blade App 20140190223 - FIELD; Peter H. ; et al. | 2014-07-10 |
| Cylinder lock and auxiliary locking mechanism Grant 8,186,194 - Field , et al. May 29, 2 | 2012-05-29 |
| Cylinder lock assembly with a tailpiece rotationally coupled to the cylinder plug Grant 7,895,865 - Hartman , et al. March 1, 2 | 2011-03-01 |
| Hierarchical cylinder lock systems Grant 7,797,973 - Field , et al. September 21, 2 | 2010-09-21 |
| Cylinder Lock and Auxiliary Locking Mechanism App 20090241620 - FIELD; Peter H. ; et al. | 2009-10-01 |
| Cylinder Lock Assembly With A Tailpiece Rotationally Coupled To The Cylinder Plug App 20090044579 - Hartman; Glenn ; et al. | 2009-02-19 |
| Hierarchical Cylinder Lock Systems App 20080223097 - Field; Peter H. ; et al. | 2008-09-18 |
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