Issued Patents 2021
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11208783 | Methods of using triangulation to locate a manhole event in a system of underground vaults | — | 2021-12-28 |
| 11079311 | Methods of using component mass balance to evaluate manhole events | Weston Philips Chapin Ford | 2021-08-03 |
| 11060754 | Ventilation system for manhole vault | Donald R. Songras, Mark Newton, James Steele | 2021-07-13 |
| 11054404 | Methods of using dilution of a first type to calibrate one or more sensors | Weston Philips Chapin Ford | 2021-07-06 |
| 11035770 | Methods of using component mass balance to evaluate manhole events | Weston Philips Chapin Ford | 2021-06-15 |
| 10962253 | Systems for circulating air inside a manhole vault | Mark Newton, Donald R. Songras, James Steele | 2021-03-30 |
| 10883347 | Methods and systems for detecting manhole events | David C. Busby, Weston Philips Chapin Ford, Jeffrey Andrew Thomas | 2021-01-05 |
| 10883348 | Flow restrictor for installation in an underground conduit connected to an underground vault | David C. Busby | 2021-01-05 |