Effikal International, Inc.

Calculating rank

USPTO Granted Patents = 3

Forward Citations = 55

Loading Chart...

2 inventors (with patents filed for the assignee):

Cory Allan Weiss (3 out of 12 patents)

Paul W Droll (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 6644957 - Damper control device (2003-11-11),

2. 6439877 - Control device for a gas-fired appliance (2002-08-27),

3. 6257871 - Control device for a gas-fired appliance (2001-07-10),

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

3 Patents

#5 in Orion, MI

#2,496 in Michigan

#73,976 in US

Orion, MI, United States of America

Effikal International, Inc.

Forward Citations = 55

2 inventors:

Cory Allan Weiss (3 out of 12 patents)

Paul W Droll (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Effikal International, Inc.. Retrieved from https://idiyas.com/company/effikal-international

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]