For the Inventor, By the Inventor

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Tortola, Virgin Islands, British

Daka Research Inc.

USPTO Granted Patents = 22

% Expired Patents = 22.7

EPO Patents = 3

Forward Citations = 347

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16 inventors (with patents filed for the assignee):

Pat Y Mah (12 out of 57 patents)

Alexander Joseph Kalogroulis (7 out of 23 patents)

Michael Ng (6 out of 12 patents)

4. Kwong Keung Tung (6 out of 13 patents)

5. Alexander Joshef Kalogroulis (6 out of 10 patents)

6. Mark Andrew Sanders (4 out of 22 patents)

7. Pat Yin Mah (4 out of 14 patents)

8. Clive Marles Sinclair (3 out of 5 patents)

9. Wen Jung Li (1 out of 4 patents)

10. Matthew Edward White (1 out of 4 patents)

11. Guanglie Zhang (1 out of 1 patent)

12. Guangyi Shi (1 out of 1 patent)

13. Yilun Luo (1 out of 1 patent)

14. Heidi Yee Yan Wong (1 out of 1 patent)

15. Ming Yiu Wong (1 out of 1 patent)

22 patents: Sort by Forward Citations

1. D643269 - Multi-function can opener (2011-08-16),

2. D643268 - Can opener (2011-08-16),

3. D642875 - Slicer (2011-08-09),

4. D634597 - Can opener (2011-03-22),

5. D624377 - Bottle opener and closer (2010-09-28),

6. D608162 - Mandolin slicer (2010-01-19),

7. 7596874 - Mechanism for can opener (2009-10-06),

8. D594303 - Jar opener (2009-06-16),

9. D594302 - Corkscrew opener (2009-06-16),

10. D594301 - Mini can opener (2009-06-16),

11. 7508384 - Writing system (2009-03-24),

12. 7437825 - Mechanism for can opener (2008-10-21),

13. D562088 - Nut cracker design (2008-02-19),

14. D562087 - Spice mill (2008-02-19),

15. 7229188 - Faraday flashlight (2007-06-12),

Daka Research Inc. is a leading market research firm specializing in gathering and analyzing consumer insights. With a team of experienced researchers, we provide valuable data and strategic recommendations to help companies make informed business decisions. Our services include surveys, focus groups, and data analysis to drive growth and innovation for our clients.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

22 Patents

#27 in Tortola

#34 in Virgin Islands, British

#28,690 in the World

Tortola, Virgin Islands, British

Daka Research Inc.

Forward Citations = 347

16 inventors:

Pat Y Mah (12 out of 57 patents)

Alexander Joseph Kalogroulis (7 out of 23 patents)

Michael Ng (6 out of 12 patents)

4. Kwong Keung Tung (6 out of 13 patents)

5. Alexander Joshef Kalogroulis (6 out of 10 patents)

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