Sayles; John
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sayles; John.The latest application filed is for "step sensor and ladder having same".
- Sayles; John - West Chester PA
| Patent | Date |
|---|---|
| Safe zone detection system for lift having a pluarlity of sensors Grant 9,327,953 - Sayles May 3, 2 | 2016-05-03 |
| Step Sensor And Ladder Having Same App 20140231170 - Frame; William ; et al. | 2014-08-21 |
| Safe Zone Detection System App 20130075203 - SAYLES; John | 2013-03-28 |
| Weight-releasing ladder lockstep Grant 7,828,115 - Sayles November 9, 2 | 2010-11-09 |
| Weight-releasing ladder lockstep App 20060225954 - Sayles; John | 2006-10-12 |
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