Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11493229 | Chamberless wide area duct smoke detector | Marcin Piech, Slade R. Culp, Joseph Anthony Vidulich, Rick Wolf, Michael J. Birnkrant +3 more | 2022-11-08 |
| 11474018 | Fluorescence enhanced LIDAR based particulate detector | Peter R. Harris, Michael J. Birnkrant, Jennifer M. Alexander, Michael T. Gorski | 2022-10-18 |
| 11448581 | High sensitivity fiber optic based detection system | Jie Xi, Michael J. Birnkrant, Alan Matthew Finn, Jennifer M. Alexander, Jun Hou | 2022-09-20 |
| 11361643 | High sensitivity fiber optic based detection system | Michael J. Birnkrant, Alan Matthew Finn, Jennifer M. Alexander | 2022-06-14 |
| 11295594 | Chamberless smoke detector with indoor air quality detection and monitoring | Jennifer M. Alexander, Peter R. Harris, Michael J. Birnkrant | 2022-04-05 |
| 11293865 | High sensitivity fiber optic based detection | Michael J. Birnkrant, Jennifer M. Alexander, Peter R. Harris | 2022-04-05 |
| 11288941 | High sensitivity fiber optic based detection | Michael J. Birnkrant, Jennifer M. Alexander, Peter R. Harris | 2022-03-29 |
| 11127270 | High sensitivity fiber optic based detection | Michael J. Birnkrant, Jennifer M. Alexander, Peter R. Harris | 2021-09-21 |
| 11127271 | Multipurpose air monitoring device | Marcin Piech, Peter R. Harris, Michael J. Birnkrant, Michael T. Gorski | 2021-09-21 |
| 11087605 | Smoke detection methodology | Hui Fang, Jie Xi, Peter R. Harris, Vivek Venugopalan | 2021-08-10 |
| 11062586 | Method of monitoring health of protective cover of detection device | — | 2021-07-13 |
| 10950108 | Characterization of aerosols | Jennifer M. Alexander, Michael T. Gorski | 2021-03-16 |
| 10937294 | Chamberless air quality monitors with temperature sensing | Michael J. Birnkrant | 2021-03-02 |
| 10871452 | Systems and methods for chamberless smoke detection and indoor air quality monitoring | Jennifer M. Alexander, Michael J. Birnkrant, Peter R. Harris | 2020-12-22 |
| 10852233 | Systems and methods for chamberless smoke detection and indoor air quality monitoring | Jennifer M. Alexander, Michael J. Birnkrant, Peter R. Harris | 2020-12-01 |
| 10845294 | Systems and methods for particulate ingestion sensing in gas turbine engines | Wayde R. Schmidt, Michael J. Birnkrant, Xuemei Wang | 2020-11-24 |
| 10677714 | Optically enhanced protective cover for chamberless point sensor | Jennifer M. Alexander, Michael J. Birnkrant, Peter R. Harris | 2020-06-09 |
| 10339778 | Chamberless air quality monitors with temperature sensing | Michael J. Birnkrant | 2019-07-02 |
| 9988242 | Elevator rail healthy monitoring method | Michael J. Birnkrant, Wayde R. Schmidt | 2018-06-05 |