For the Inventor, By the Inventor

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Seattle, WA, United States of America

Singletto Inc.

USPTO Granted Patents = 4

Trademarks = 4

Forward Citations = 3

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8 inventors (with patents filed for the assignee):

James C Chen (4 out of 50 patents)

Kathleen Lendvay (2 out of 3 patents)

Celesta Jane Bjornson (2 out of 2 patents)

4. John David Bjornson (2 out of 2 patents)

5. LuAnn Lawton Chen (2 out of 2 patents)

6. Stephanie Marie Chong-Ming Chen (2 out of 2 patents)

7. Daniel Duong Hoang (2 out of 2 patents)

8. Paul Deven Rolley (2 out of 2 patents)

4 patents: Sort by Forward Citations

1. 12752035 - Air sanitization (2026-10-06),

2. 12359369 - Skin protection against microbial particles (2025-07-15),

3. 11925717 - Microbial disinfection for personal protection equipment (2024-03-12),

4. 11458220 - Microbial disinfection for personal protection equipment (2022-10-04),

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USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#422 in Seattle, WA

#1,463 in Washington

#60,597 in US

Seattle, WA, United States of America

Singletto Inc.

Forward Citations = 3

8 inventors:

James C Chen (4 out of 50 patents)

Kathleen Lendvay (2 out of 3 patents)

Celesta Jane Bjornson (2 out of 2 patents)

4. John David Bjornson (2 out of 2 patents)

5. LuAnn Lawton Chen (2 out of 2 patents)

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