For the Inventor, By the Inventor

Enter assignee name

San Jose, CA, United States of America

E-Phocus, Inc.

USPTO Granted Patents = 13

% Expired Patents = 92.3

Forward Citations = 679

Loading Chart...

Loading Chart...

11 inventors (with patents filed for the assignee):

Tzu-Chiang Hsieh (10 out of 11 patents)

Calvin Chao (8 out of 8 patents)

Michael Engelmann (4 out of 7 patents)

4. Milam Pender (4 out of 4 patents)

5. Peter J Martin (3 out of 23 patents)

6. Chris Sexton (1 out of 4 patents)

7. Michael G Engelman (1 out of 1 patent)

8. Teu Chiang Hsieh (1 out of 1 patent)

9. Milan Pender (1 out of 1 patent)

10. Tzu-Chiang Hsish (1 out of 1 patent)

11. Paul A Johnson (1 out of 24 patents)

13 patents: Sort by Forward Citations

1. 7906826 - Many million pixel image sensor (2011-03-15),

2. 7820525 - Method for manufacturing hybrid image sensors (2010-10-26),

3. 7786543 - CDS capable sensor with photon sensing layer on active pixel circuit (2010-08-31),

4. 7525168 - CMOS sensor with electrodes across photodetectors at approximately equal potential (2009-04-28),

5. 7436038 - Visible/near infrared image sensor array (2008-10-14),

6. 7411233 - Photoconductor-on-active-pixel (POAP) sensor utilizing a multi-layered radiation absorbing structure (2008-08-12),

7. 7276749 - Image sensor with microcrystalline germanium photodiode layer (2007-10-02),

8. 7196391 - MOS or CMOS sensor with micro-lens array (2007-03-27),

9. 6809358 - Photoconductor on active pixel image sensor (2004-10-26),

10. 6798033 - Photoconductor-on-active-pixel (POAP) sensor utilizing a multi-layered radiation absorbing structure (2004-09-28),

11. 6791130 - Photoconductor-on-active-pixel (POAP) sensor utilizing a multi-layered radiation absorbing structure (2004-09-14),

12. 6730914 - Photoconductor-on-active-pixel (POAP) sensor utilizing equal-potential pixel electrodes (2004-05-04),

13. 6730900 - Camera with MOS or CMOS sensor array (2004-05-04),

e-Phocus, Inc. is a technology company specializing in innovative solutions for the e-commerce industry. Our mission is to enable businesses to thrive online by providing cutting-edge e-commerce platforms and digital marketing strategies. With a dedicated team of experts, e-Phocus offers scalable e-commerce solutions, seamless mobile integration, secure payment gateways, and robust analytics tools. We are committed to helping our clients build successful online businesses and drive forward in the digital marketplace.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

13 Patents

#452 in San Jose, CA

#5,648 in California

#23,808 in US

#44,950 in the World

San Jose, CA, United States of America

E-Phocus, Inc.

Forward Citations = 679

11 inventors:

Tzu-Chiang Hsieh (10 out of 11 patents)

Calvin Chao (8 out of 8 patents)

Michael Engelmann (4 out of 7 patents)

4. Milam Pender (4 out of 4 patents)

5. Peter J Martin (3 out of 23 patents)

Please report any incorrect information to [email protected]

Loading…