% Expired Patents = 50.0

Forward Citations = 12

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3 inventors (with patents filed for the assignee):

Guenter F Voss (4 out of 4 patents)

Anthony N Duryea (2 out of 4 patents)

Alan B Celo (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 8368496 - Permanent magnet having improved field quality and apparatus employing the same (2013-02-05),

2. 6815674 - Mass spectrometer and related ionizer and methods (2004-11-09),

3. 6624410 - Cycloidal mass spectrometer (2003-09-23),

4. 6617576 - Cycloidal mass spectrometer with time of flight characteristics and associated method (2003-09-09),

Company Overview

Monitor Instruments Company, LLC is a leading provider of high-quality monitoring and measurement equipment for various industries. With a focus on precision and reliability, we offer a wide range of products including gas detectors, pressure gauges, flow meters, and more. Our dedication to customer satisfaction and innovative solutions sets us apart in the industry, making us the preferred choice for critical monitoring needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#4 in Cheswick, PA

#2,213 in Pennsylvania

#60,597 in US

Cheswick, PA, United States of America

Monitor Instruments Company, LLC

Forward Citations = 12

3 inventors:

Guenter F Voss (4 out of 4 patents)

Anthony N Duryea (2 out of 4 patents)

Alan B Celo (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Monitor Instruments Company, LLC. Retrieved from https://idiyas.com/company/monitor-instruments-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]