Ledingham; John
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ledingham; John.The latest application filed is for "compartmentalized hand warmer".
- Ledingham; John - Carr CO
- Ledingham; John - Scotts Valley CA US
- Ledingham; John - Parkland FL
- Ledingham; John - Chicago IL
| Patent | Date |
|---|---|
| Compartmentalized Hand Warmer App 20190014834 - Ledingham; John | 2019-01-17 |
| Compartmentalized hand warmer Grant 10,085,496 - Ledingham October 2, 2 | 2018-10-02 |
| Compartmentalized Hand Warmer App 20170265535 - Ledingham; John | 2017-09-21 |
| Compartmentalized hand warmer Grant D783,227 - Ledingham April 11, 2 | 2017-04-11 |
| Communications headset Grant RE45,056 - Yang , et al. August 5, 2 | 2014-08-05 |
| Communications headset Grant RE44,672 - Yang , et al. December 31, 2 | 2013-12-31 |
| Communications headset Grant D612,834 - Yang , et al. March 30, 2 | 2010-03-30 |
| Communications headset Grant D612,840 - Yang , et al. March 30, 2 | 2010-03-30 |
| Microphone boom for a communications headset Grant D612,835 - Yang , et al. March 30, 2 | 2010-03-30 |
| Wireless communication device Grant D439,232 - Ledingham , et al. March 20, 2 | 2001-03-20 |
| Cabinet for nebulizer Grant D378,128 - Rozek , et al. February 18, 1 | 1997-02-18 |
| Transfer bench for bathtub Grant D375,638 - Dhanapal , et al. November 19, 1 | 1996-11-19 |
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