Hoffman Estates, IL, United States of America

E3tec Service, LLC

Calculating rank

USPTO Granted Patents = 5

% Expired Patents = 20.0

CIPO Patents = 1

EPO Patents = 1

Forward Citations = 9

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6 inventors (with patents filed for the assignee):

Chandrakant B Panchal (5 out of 7 patents)

John C Prindle (3 out of 8 patents)

Richard Doctor (1 out of 3 patents)

4. Dennis J Miller (1 out of 39 patents)

5. Carl T Lira (1 out of 10 patents)

6. Aspi Kolah (1 out of 5 patents)

5 patents: Sort by Forward Citations

1. 10941105 - Method for direct conversion of carbon dioxide to dialkyl carbonates using ethylene oxide as feedstock (2021-03-09),

2. 9796656 - Method of producing high-concentration alkyl carbonates using carbon dioxide as feedstock (2017-10-24),

3. 9518003 - Method of producing high-concentration alkyl carbonates using carbon dioxide as feedstock (2016-12-13),

4. 9222924 - Differential kinetic test unit (2015-12-29),

5. 9174920 - Integrated process of distillation with side reactors for synthesis of organic acid esters (2015-11-03),

Company Overview

E3tec Service, LLC is a leading provider of HVAC and energy solutions in the Greater Chicago area. With over 10 years of experience, we offer comprehensive services including installation, maintenance, and repair for residential and commercial clients. Our team of skilled technicians is committed to delivering top-notch customer service and reliable solutions to improve indoor comfort and energy efficiency.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

5 Patents

#14 in Hoffman Estates, IL

#2,427 in Illinois

#51,669 in US

Hoffman Estates, IL, United States of America

E3tec Service, LLC

Forward Citations = 9

6 inventors:

Chandrakant B Panchal (5 out of 7 patents)

John C Prindle (3 out of 8 patents)

Richard Doctor (1 out of 3 patents)

4. Dennis J Miller (1 out of 39 patents)

5. Carl T Lira (1 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: E3tec Service, LLC. Retrieved from https://idiyas.com/company/e3tec-service

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]

1 patent (CIPO):

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]

1 patent (EPO):

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]