logo

For the Inventor, By the Inventor

Moraga, CA, United States of America

Softfocal Company, Inc.


USPTO Granted Patents = 3

% Expired Patents = 66.7

Forward Citations = 73

Loading Chart...
Loading Chart...

2 inventors (with patents filed for the assignee):

goldMedal Robert Barry Mandell (3 out of 14 patents)

silverMedal Charles E Campbell (1 out of 42 patents)


3 patents:

1. 6871953 - Contact lens with transition (2005-03-29),
2. 6746118 - Bifocal contact lens with secondary prism (2004-06-08),
3. 6176579 - Bifocal contact lens with toric transition (2001-01-23),
logo

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#8 in Moraga, CA

#16,838 in California

#73,766 in US

Moraga, CA (US)
Moraga, CA, United States of America

Softfocal Company, Inc.

Forward Citations = 73

2 inventors:

goldMedal Robert Barry Mandell (3 out of 14 patents)

silverMedal Charles E Campbell (1 out of 42 patents)

Please report any incorrect information to [email protected]
Loading…