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Forward Citations = 399

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6 inventors (with patents filed for the assignee):

John D Fergason (7 out of 25 patents)

Jeffrey K Fergason (5 out of 11 patents)

Arthur Louis Berman (2 out of 57 patents)

4. James L Fergason (2 out of 117 patents)

5. Paul L Howard (1 out of 3 patents)

6. Jochen P Backs (1 out of 7 patents)

8 patents: Sort by Forward Citations

1. 5515186 - Eye protection device for welding helmets which reduces obliquely (1996-05-07),

2. 5377032 - Electro-optic light shutter and frame assembly with integrated switching (1994-12-27),

3. D353692 - Welding lens assembly (1994-12-20),

4. 5347383 - High speed, low power driving circuit for liquid crystal shutter (1994-09-13),

5. D349588 - Welding lens assembly (1994-08-09),

6. 5252817 - Detector system for detecting the occurrence of welding using detector (1993-10-12),

7. 5248880 - Detector system for detecting the occurrence of welding (1993-09-28),

8. 5208688 - Eye protection device for welding helmets (1993-05-04),

OSD Envizion Company specializes in providing cutting-edge environmental solutions for industries. From air quality monitoring to waste management, we offer a wide range of services to help businesses minimize their environmental impact. Our team of experts is dedicated to providing innovative and sustainable solutions to meet the unique needs of each client. Visit our website to learn more about how OSD Envizion Company can help your business thrive while protecting the environment.

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USPTO Data Jan 1 1976 - Dec 30 2025

8 Patents

#138 in Menlo Park, CA

#8,296 in California

#34,919 in US

Menlo Park, CA, United States of America

Osd Envizion Company