Average Co-Inventor Count = 2.09
ph-index = 14
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. General Signal Corporation (25 from 786 patents)
2. Edwards Systems Technology, Incorporated, Inc. (12 from 30 patents)
3. Spx Corporation (1 from 614 patents)
4. Utc Fire & Security Americas Corporation, Inc. (1 from 86 patents)
5. Utc Fire & Security Canada (0 patent)
39 patents:
1. 8548126 - Polarized telephone system for 3-state and 4-state systems
2. 7218238 - Fire alarm system with method of building occupant evacuation
3. 7129847 - Detector with dust filter and airflow monitor
4. 7030766 - Ambient condition detector with multi-function test
5. D513199 - Horn/strobe alarm
6. 6927673 - Method and apparatus for adjusting audible and visual outputs of a mounted alarm device
7. 6897774 - Ambient condition detector with multipe sensors and single control unit
8. D493376 - Ambient condition detector
9. 6765477 - Apparatus and method for activating a non-contact switch fire alarm pull station
10. D489353 - Wall speaker strobe
11. 6693534 - Emergency alarm system using pull-station with camera
12. D474173 - Ceiling speaker
13. D474174 - Ceiling speaker with strobe
14. D472887 - Wall speaker strobe
15. 6417772 - Life safety system with energy saving visual alarm appliance and method