Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8184562 | Process control system having dual wireless communication links | Thomas A. Boyd | 2012-05-22 |
| 7623479 | Process control system devices with dual hardwired and wireless communication ports | Thomas A. Boyd | 2009-11-24 |
| 7609660 | Wireless transceiver pair disposed within a process control system | Thomas A. Boyd | 2009-10-27 |
| 7602741 | Field device in a process control system using wireless radio communications to transmit and receive sense and control signals | Thomas A. Boyd | 2009-10-13 |
| 7519012 | Distributed control system for controlling material flow having wireless transceiver connected to industrial process control field device to provide redundant wireless access | Thomas A. Boyd | 2009-04-14 |
| 7453834 | Distributed control system for controlling material flow having wireless transceiver connected to industrial process control field device to provide redundant wireless access | Thomas A. Boyd | 2008-11-18 |
| 6236334 | Distributed control system for controlling material flow having wireless transceiver connected to industrial process control field device to provide redundant wireless access | Thomas A. Boyd | 2001-05-22 |
| 5793963 | Apparatus for providing non-redundant secondary access to field devices in a distributed control system | Thomas A. Boyd | 1998-08-11 |
| 5682476 | Distributed control system having central control providing operating power to wireless transceiver connected to industrial process control field device which providing redundant wireless access | Thomas A. Boyd | 1997-10-28 |