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For the Inventor, By the Inventor

Rancho Cucamonga, CA, United States of America

Spectrasensors, Inc.


USPTO Granted Patents = 63

% Expired Patents = 30.2



Trademarks = 4

Forward Citations = 561

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46 inventors (with patents filed for the assignee):

goldMedal Alfred O Feitisch (39 out of 43 patents)

silverMedal Xiang Liu (31 out of 35 patents)

bronzeMedal Xin Zhou (16 out of 116 patents)

4.  Randy Dean May (16 out of 18 patents)

5.  Mathias Schrempel (12 out of 13 patents)

6.  Gregory M Sanger (9 out of 9 patents)

7.  Keith Benjamin Helbley (8 out of 8 patents)

8.  Lutz Keller (6 out of 6 patents)

9.  Gabi Neubauer (6 out of 11 patents)

10.  Hsu-Hung Huang (6 out of 6 patents)

11.  Richard L Cline (5 out of 6 patents)

12.  Peter Scott (5 out of 6 patents)

13.  Peter Dorn (4 out of 4 patents)

14.  Adam S Chaimowitz (4 out of 4 patents)

15.  Wenhai Ji (4 out of 4 patents)


Core Competencies:
Spectrometer
Gas Detection
Optical Measurements
Semiconductor Laser
Absorption Spectroscopy
Dynamic Calibration
Reactive Gases
Background Compensation
Frequency Stability
Tunable Diode Laser
Moisture Detection
Energy Flow Measurement

63 patents:

1. 11169357 - Light source module (2021-11-09),
2. 11079324 - Spectrometer with wide-scan tunable diode laser (2021-08-03),
3. 11079316 - Intrinsically safe spectroscopic analyzer (2021-08-03),
4. 10746655 - Optical absorbance measurements with self-calibration and extended dynamic range (2020-08-18),
5. 10643008 - Target analyte detection and quantification in sample gases with complex background compositions (2020-05-05),
6. 10620045 - Spectrometer with active beam steering (2020-04-14),
7. 10488258 - Optical reflectors for spectrometer gas cells (2019-11-26),
8. 10309828 - Spectrometer with active beam steering (2019-06-04),
9. 10224693 - Semiconductor laser mounting with intact diffusion barrier layer (2019-03-05),
10. 10180353 - Determination and correction of frequency registration deviations for quantitative spectroscopy (2019-01-15),
11. 10156513 - Reduced volume spectroscopic sample cell (2018-12-18),
12. 10073028 - Spectrometer optical head assembly (2018-09-11),
13. 10072980 - Spectrometer with variable beam power and shape (2018-09-11),
14. 10024788 - Spectrometer with random beam profiles (2018-07-17),
15. 9846117 - Optical absorbance measurements with self-calibration and extended dynamic range (2017-12-19),
Spectrasensors, Inc., based in Rancho Cucamonga, California, specializes in advanced spectroscopic analysis technologies. The company focuses on the development and manufacturing of sophisticated spectrometers and gas detection systems, utilizing optical measurements and semiconductor lasers. Their expertise encompasses absorption spectroscopy and dynamic calibration techniques, enabling precise detection of reactive gases while implementing background compensation methods. Spectrasensors is committed to enhancing analytical capabilities across various industries through innovative solutions.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Spectrasensors, Inc.
63 Patents

#2 in Rancho Cucamonga, CA

#1,343 in California

#5,753 in US

#11,611 in the World

Rancho Cucamonga, CA (US)
Rancho Cucamonga, CA, United States of America

Spectrasensors, Inc.

Forward Citations = 561

46 inventors:

goldMedal Alfred O Feitisch (39 out of 43 patents)

silverMedal Xiang Liu (31 out of 35 patents)

bronzeMedal Xin Zhou (16 out of 116 patents)

4.  Randy Dean May (16 out of 18 patents)

5.  Mathias Schrempel (12 out of 13 patents)

Please report any incorrect information to [email protected]
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