% Expired Patents = 40.0

Trademarks = 10

Forward Citations = 48

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4 inventors (with patents filed for the assignee):

Edward K Kaprelian (3 out of 6 patents)

Carlos Martinez (1 out of 39 patents)

Mamoru Oishi (1 out of 1 patent)

4. William E Mimmack (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 9775006 - Audio amplifier activation device, audio amplifier, and remote broadcast system (2017-09-26),

2. 7494014 - Shipping container for solid hazardous material (2009-02-24),

3. 4728770 - Dual axis optical system (1988-03-01),

4. 4235508 - Dual focal length objective (1980-11-25),

5. 4061420 - Catadioptric lens system (1977-12-06),

Questar Inc. is a leading provider of innovative solutions in the areas of data management, analytics, and consulting services. With a team of experienced professionals, we help our clients unlock the full potential of their data to make informed business decisions and drive growth. Our customizable solutions are designed to meet the unique needs of each client and deliver tangible results. Visit our website to learn more about our offerings and how we can help your business succeed.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

5 Patents

#110 in Saitama 343-0827

#6,647 in Japan

Saitama, Japan

Questar Inc.

Forward Citations = 48

4 inventors:

Edward K Kaprelian (3 out of 6 patents)

Carlos Martinez (1 out of 39 patents)

Mamoru Oishi (1 out of 1 patent)

4. William E Mimmack (1 out of 1 patent)

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