Nicholl; William J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Nicholl; William J..The latest application filed is for "electric motor actuated stop and self-closing check valve".
- Nicholl; William J. - Pittsburgh PA
| Patent | Date |
|---|---|
| Electric Motor Actuated Stop and Self-Closing Check Valve App 20130312837 - Bartell, JR.; Donald L. ; et al. | 2013-11-28 |
| Electric motor actuated stop and self-closing check valve Grant 8,465,000 - Bartell, Jr. , et al. June 18, 2 | 2013-06-18 |
| Electric Motor Actuated Stop and Self-Closing Check Valve App 20110259433 - Bartell, JR.; Donald L. ; et al. | 2011-10-27 |
| Electric motor actuated stop and self-closing check valve App 20080061257 - Bartell; Donald L. JR. ; et al. | 2008-03-13 |
| Electric motor actuated stop and self-closing check valve Grant 7,249,748 - Bartell, Jr. , et al. July 31, 2 | 2007-07-31 |
| Electric motor actuated stop and self-closing check valve App 20050269535 - Bartell, Donald L. JR. ; et al. | 2005-12-08 |
| Electric motor actuated stop and self-closing check valve Grant 6,929,238 - Bartell, Jr. , et al. August 16, 2 | 2005-08-16 |
| Electric motor actuated stop and self-closing check valve App 20050062000 - Bartell, Donald L. JR. ; et al. | 2005-03-24 |
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