Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11605037 | Fleet management system for portable maintenance tools | Joseph D. Fisher, Nicholas T. Meyer | 2023-03-14 |
| D950406 | Handheld maintenance tool | Alan R. Dewey, Tom Johnson | 2022-05-03 |
| 10764083 | Portable field maintenance tool with resistor network for intrinsically safe operation | Roger Benson, Mehul Rajeshbhai Dalal, Anthony D. Ferguson | 2020-09-01 |
| D885215 | Handheld maintenance tool | Alan R. Dewey, Tom Johnson | 2020-05-26 |
| 10599134 | Portable field maintenance tool configured for multiple process control communication protocols | Roger Benson, Anthony D. Ferguson | 2020-03-24 |
| 10585422 | Portable field maintenance tool system having interchangeable functional modules | Alden C. Russell, III, Alan R. Dewey, Brad N. Mathiowetz, Stephen Armstrong | 2020-03-10 |
| 10554644 | Two-factor authentication for user interface devices in a process plant | Joseph D. Fisher, Christopher P. Kantzes, Neil J. Peterson | 2020-02-04 |
| 10481627 | Connection check in field maintenance tool | Christian R. Butikofer, Anthony D. Ferguson, Christopher P. Kantzes, Jon Westbrock, Thinh D. Le +3 more | 2019-11-19 |
| D856831 | Handheld maintenance tool | Alan R. Dewey, Tom Johnson | 2019-08-20 |
| 10375162 | Process control communication architecture | James R. Logerquist, Joseph D. Fisher | 2019-08-06 |
| 10374873 | Process control communication between a portable field maintenance tool and a process control instrument | Joseph D. Fisher, James R. Logerquist, Alan R. Dewey, Stephen Armstrong, Laura Briggs +1 more | 2019-08-06 |
| 10270215 | Two-prong plug of a single lead set for supplying fieldbus communication and power from a handheld maintenance tool in a hazardous area | Alan R. Dewey, Alden C. Russell, III, Roger Benson, Anthony D. Ferguson | 2019-04-23 |
| 10270853 | Process control communication between a portable field maintenance tool and an asset management system | Joseph D. Fisher, James R. Logerquist, Alan R. Dewey, Alden C. Russell, III, Laura Briggs +1 more | 2019-04-23 |
| 10268180 | Handheld field maintenance tool with simulation of field device for instruction or qualification | Brad N. Mathiowetz, Christopher P. Kantzes, Kun Yang, Adam E. Lund | 2019-04-23 |
| D818857 | Handheld maintenance tool | Alan R. Dewey, Tom Johnson | 2018-05-29 |
| 9864357 | Handheld field maintenance tool with integration to external software application | Brad N. Mathiowetz, Christopher P. Kantzes, Kun Yang, Adam E. Lund | 2018-01-09 |
| 9805528 | Authentication and authorization to control access to process control devices in a process plant | Joseph D. Fisher, Christopher P. Kantzes, Nicholas T. Meyer | 2017-10-31 |
| 9709602 | Method for supplying fieldbus communication and power from a handheld maintenance tool in a hazardous area using a single lead set | Alan R. Dewey, Alden C. Russell, III, Roger Benson, Anthony D. Ferguson | 2017-07-18 |
| 9709973 | Handheld field maintenance tool with improved diagnostics | Christopher P. Kantzes, Brad N. Mathiowetz, Kun Yang, Adam E. Lund | 2017-07-18 |
| 9703279 | Handheld field maintenance device with improved user interface | Christopher P. Kantzes, Brad N. Mathiowetz, Kun Yang, Adam E. Lund | 2017-07-11 |
| D790997 | Handheld maintenance tool | Alan R. Dewey, Tom Johnson | 2017-07-04 |
| 9684296 | Handheld field maintenance tool with improved functionality | Alden C. Russell, III, Alan R. Dewey, Joseph Citrano, III | 2017-06-20 |
| 9532232 | Detection and location of wireless field devices | Alan R. Dewey, Joseph Citrano, III, Alden C. Russell, III, Eric D. Rotvold | 2016-12-27 |
| 9503906 | Detection and location of wireless field devices | Alan R. Dewey, Joseph Citrano, III, Alden C. Russell, III, Eric D. Rotvold | 2016-11-22 |
| D764329 | Plug for and a handheld maintenance tool | Alan R. Dewey, Tom Johnson | 2016-08-23 |