Parfitt; Steven Perry
Patent Applications and Registrations
Patent applications and USPTO patent grants for Parfitt; Steven Perry.The latest application filed is for "devices, systems, and methods for reducing signals".
- Parfitt; Steven Perry - Johnson City TN
| Patent | Date |
|---|---|
| Devices, systems, and methods regarding programmable logic controller communications Grant 8,352,651 - Parfitt January 8, 2 | 2013-01-08 |
| Systems and/or devices for providing an isolated analog output or analog input Grant 7,786,919 - Parfitt August 31, 2 | 2010-08-31 |
| Devices, systems, and methods for reducing signals Grant 7,646,230 - Parfitt January 12, 2 | 2010-01-12 |
| Systems and/or Devices for Providing an Isolated Analog Output or Analog Input App 20090079612 - Parfitt; Steven Perry | 2009-03-26 |
| Devices, Systems, and Methods for Reducing Signals App 20090082882 - Parfitt; Steven Perry | 2009-03-26 |
| Devices, Systems, and Methods Regarding Programmable Logic Controller Communications App 20080313486 - Parfitt; Steven Perry | 2008-12-18 |
| Analog to digital converter threshold detection circuit Grant 6,667,705 - Parfitt December 23, 2 | 2003-12-23 |
| Analog to digital converter threshold detection circuit App 20030184462 - Parfitt, Steven Perry | 2003-10-02 |
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