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Barneveld, WI, United States of America

Quantum Devices, Inc.

USPTO Granted Patents = 19

% Expired Patents = 52.6

CIPO Patents = 3

Forward Citations = 580

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15 inventors (with patents filed for the assignee):

Jeffry A Kelber (7 out of 20 patents)

Peter A Dowben (6 out of 32 patents)

Todd S Martin (5 out of 7 patents)

4. Richard C Eden (3 out of 13 patents)

5. Ronald W Ignatius (3 out of 5 patents)

6. Mohammad A Mazed (2 out of 52 patents)

7. Christian Binek (1 out of 6 patents)

8. Kirill D Belashchenko (1 out of 3 patents)

9. Peter Arnold Bowden (1 out of 1 patent)

10. David S Wisbey (1 out of 2 patents)

11. Jinke Tang (1 out of 1 patent)

12. William H Southwell (1 out of 25 patents)

13. Joerg Wiedmann (1 out of 2 patents)

14. Charles Kirk (1 out of 1 patent)

15. James Stevens (1 out of 1 patent)

19 patents: Sort by Forward Citations

1. 9857205 - Encoder system with a desired radial alignment and axial gap (2018-01-02),

2. 9799815 - Doped boron carbides and thermoelectric applications (2017-10-24),

3. 9748340 - Graphene field effect transistor (2017-08-29),

4. 9620654 - Coherent spin field effect transistor (2017-04-11),

5. 9614149 - Coherent spin field effect transistor (2017-04-04),

6. 9379232 - Magneto-electric voltage controlled spin transistors (2016-06-28),

7. 9324960 - Semiconducting alloy polymers formed from orthocarborane and 1,4-diaminobenzene (2016-04-26),

8. 9202899 - Voltage switchable non-local spin-FET and methods for making same (2015-12-01),

9. 8860161 - Neutron detection using GD-loaded oxide and nitride heterojunction diodes (2014-10-14),

10. 8748957 - Coherent spin field effect transistor (2014-06-10),

11. 6796994 - Device for the treatment of mucositis (2004-09-28),

12. 6775312 - Photonic integrated circuit (2004-08-10),

13. 6590916 - Method for fabricating a wave division laser array multiplexer (2003-07-08),

14. 6563108 - System for tracking angular and linear motion (2003-05-13),

15. 6553044 - Method and apparatus for reducing electrical and thermal crosstalk of a laser array (2003-04-22),

Quantum Devices, Inc. is a leading manufacturer and supplier of high-quality, precision motor encoders and non-contact optical encoders. With over 30 years of experience, we specialize in providing innovative solutions for motion control applications across various industries. Our cutting-edge technology and commitment to excellence allow us to deliver accurate and reliable encoders that meet the needs of our customers worldwide.

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Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

19 Patents

#2 in Barneveld, WI

#398 in Wisconsin

#17,095 in US

#32,551 in the World

Barneveld, WI, United States of America

Quantum Devices, Inc.

Forward Citations = 580

15 inventors:

Jeffry A Kelber (7 out of 20 patents)

Peter A Dowben (6 out of 32 patents)

Todd S Martin (5 out of 7 patents)

4. Richard C Eden (3 out of 13 patents)

5. Ronald W Ignatius (3 out of 5 patents)

Please report any incorrect information to [email protected]

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