For the Inventor, By the Inventor

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Cambridge, Canada

Spheral Solar Power Inc.

USPTO Granted Patents = 3

Forward Citations = 30

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8 inventors (with patents filed for the assignee):

Gary Don Stevens (3 out of 3 patents)

Milfred Dale Hammerbacher (3 out of 3 patents)

Aline Wullur (2 out of 2 patents)

4. Frederic Rivollier (2 out of 3 patents)

5. Paul Ray Sharrock (2 out of 2 patents)

6. Glen Crossley (1 out of 18 patents)

7. Brett Michael Barnes (1 out of 1 patent)

8. My Thi Hoai Hoang (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 8309840 - Solar panel overlay and solar panel overlay assembly (2012-11-13),

2. 7312097 - Method of fabricating an optical concentrator for a photovoltaic solar cell (2007-12-25),

3. 6897085 - Method of fabricating an optical concentrator for a photovoltaic solar cell (2005-05-24),

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#26 in Cambridge

#4,250 in Canada

Cambridge, Canada

Spheral Solar Power Inc.

Forward Citations = 30

8 inventors:

Gary Don Stevens (3 out of 3 patents)

Milfred Dale Hammerbacher (3 out of 3 patents)

Aline Wullur (2 out of 2 patents)

4. Frederic Rivollier (2 out of 3 patents)

5. Paul Ray Sharrock (2 out of 2 patents)

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