Quad Environmental Technologies Corp. is a leading provider of innovative air purification solutions for commercial and industrial applications. With a focus on sustainability and efficiency, Quad's solutions help businesses improve indoor air quality and reduce environmental impact. Their advanced technologies and customizable systems make Quad Environmental Technologies Corp. a trusted partner for companies seeking to enhance their work environments.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

9 Patents

#6 in Highland Park, IL

#1,551 in Illinois

#32,627 in US

Highland Park, IL, United States of America

Quad Environmental Technologies Corp.

Forward Citations = 178

2 inventors:

Egbert deVries (8 out of 15 patents)

Harold J Rafson (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Quad Environmental Technologies Corp.. Retrieved from https://idiyas.com/company/quad-environmental-technologies

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]