Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7337256 | Distributed control system with multiple control levels and/or downloading | Harris D. Kagan, Harold Lake | 2008-02-26 |
| 6671763 | Distributed control system including a compact easily-extensible and serviceable field controller | Harris D. Kagan, Harold Lake | 2003-12-30 |
| 6612022 | Printed circuit board including removable auxiliary area with test points | Alan A. Gale, Thomas Alden Fiske | 2003-09-02 |
| 6496892 | Control device with PCMCIA card for communications with field device | Harold Lake, Charles W. Piper, David P. Prentice | 2002-12-17 |
| 6418499 | Distributed control system including a compact easily-extensible and serviceable field controller | Harris D. Kagan, Harold Lake | 2002-07-09 |
| 6324607 | Distributed control system including a compact, easily-extensible and serviceable field controller | Harris D. Kagan, Harold Lake | 2001-11-27 |
| 6183289 | I/O connector module for a field controller in a distributed control system | Harold Lake, Charles W. Piper, David P. Prentice | 2001-02-06 |
| 6076124 | Distributed control system including a compact easily-extensible and serviceable field controller | Harris D. Kagan, Harold Lake | 2000-06-13 |
| 6033257 | I/O connector module for a field controller in a distributed control system | Harold Lake, Charles W. Piper, David P. Prentice | 2000-03-07 |
| 6008985 | Industrial field controlling device with controller and expansion modules | Harold Lake, David P. Prentice, John Greenup, Charles W. Piper | 1999-12-28 |
| 5917840 | Protection against communications crosstalk in a factory process control system | M. Charles Cheney, William M. Slechta, Nathan H. Tobol | 1999-06-29 |
| D394842 | Field controller housing | Charles W. Kellstedt, Jr., Harris D. Kagan, Harold Lake | 1998-06-02 |
| 5656782 | Pressure sealed housing apparatus and methods | Roger E. Powell, John Angelosanto, Edwin L. Karas | 1997-08-12 |
| 4528675 | FSK modem for bidirectional loop communications system | Robert J. Esterling, Clarence L. Freed, Edward L. Weiss | 1985-07-09 |
| 4509117 | Communications network access rights arbitration | — | 1985-04-02 |
| 4482980 | Hybrid optical/electrical data highway | Francis E. McMenamin | 1984-11-13 |
| 4417303 | Multi-processor data communication bus structure | Kurt R. Leichter, Felix J. Houvig | 1983-11-22 |