Growing community of inventors

Londonderry, NH, United States of America

Matthew Erdtmann

Average Co-Inventor Count = 1.04

ph-index = 6

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.

Forward Citations = 94

Matthew ErdtmannJing Zhao (1 patent)Matthew ErdtmannGuanghai Jin (1 patent)Matthew ErdtmannMatthew Erdtmann (16 patents)Jing ZhaoJing Zhao (33 patents)Guanghai JinGuanghai Jin (9 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Valor Fire Safety, Llc. (14 from 14 patents)

2. Other (1 from 832,880 patents)

3. Agiltron Corporation (1 from 26 patents)


16 patents:

1. 11002675 - System and method of smoke detection using multiple wavelengths of light

2. 10712263 - Smoke detection using two different wavelengths of light and additional detection for measurement correction

3. 10041877 - Smoke detection using two different wavelengths of light and additional detection for measurement correction

4. 9915609 - System and method of smoke detection using multiple wavelengths of light

5. 9835549 - System and method of smoke detection using multiple wavelengths of light and multiple sensors

6. 9482607 - Methods of smoke detecting using two different wavelengths of light and ambient light detection for measurement correction

7. 9470626 - Method of smoke detection with direct detection of light and detection of light reflected from an external sampling volume

8. 9140646 - Smoke detector with external sampling volume using two different wavelengths and ambient light detection for measurement correction

9. 9142112 - Smoke detector with external sampling volume using two different wavelengths and ambient light detection for measurement correction

10. 9142113 - Smoke detector with external sampling volume using two different wavelengths and ambient light detection for measurement correction

11. 8952821 - Smoke detector utilizing ambient-light sensor, external sampling volume, and internally reflected light

12. 8947244 - Smoke detector utilizing broadband light, external sampling volume, and internally reflected light

13. 8947243 - Smoke detector with external sampling volume and utilizing internally reflected light

14. 8907802 - Smoke detector with external sampling volume and ambient light rejection

15. 7825381 - Micromechanical device for infrared sensing

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