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For the Inventor, By the Inventor

Knoxville, TN, United States of America

Inductive Signature Technologies, Inc.

Calculating rank
USPTO Granted Patents = 14

% Expired Patents = 78.6

Forward Citations = 185

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6 inventors (with patents filed for the assignee):

goldMedal Steven R Hilliard (13 out of 14 patents)

silverMedal Geoffrey W Hilliard (7 out of 8 patents)

bronzeMedal Geoffrey Yerem (4 out of 6 patents)

4.  Michael J Roberts (2 out of 4 patents)

5.  Stephen R Hilliard (1 out of 1 patent)

6.  Lawrence P Leibowitz (1 out of 1 patent)


14 patents:

1. 6999886 - Vehicle speed estimation using inductive vehicle detection systems (2006-02-14),
2. 6988052 - Normalization of inductive vehicle detector outputs (2006-01-17),
3. 6917308 - Surface-mount traffic sensors (2005-07-12),
4. 6911829 - Inductive signature measurement circuit (2005-06-28),
5. 6876949 - Normalization of inductive vehicle detector outputs (2005-04-05),
6. 6838886 - Method and apparatus for measuring inductance (2005-01-04),
7. 6803859 - Method and apparatus for active isolation in inductive loop detectors (2004-10-12),
8. 6771064 - Inductive sensor apparatus and method for deploying (2004-08-03),
9. 6639521 - Inductive sensor and method of use (2003-10-28),
10. 6611210 - Automotive vehicle classification and identification by inductive signature (2003-08-26),
11. 6590400 - Inductive signature measurement circuit (2003-07-08),
12. 6380868 - Permeability-modulated carrier referencing (2002-04-30),
13. 6342845 - Automotive vehicle classification and identification by inductive signature (2002-01-29),
14. 6337602 - Method and apparatus for active isolation in inductive loop detectors (2002-01-08),
Company Overview
Inductive Signature Technologies, Inc. is a technology company based in Knoxville, TN, specializing in advanced sensing and measurement solutions. The organization focuses on developing innovative technologies that enhance the performance and reliability of various systems through precise signal processing and data analysis. Their expertise spans multiple domains, including industrial automation and automotive applications, where they aim to improve operational efficiency and safety through cutting-edge technological advancements.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

14 Patents

#17 in Knoxville, TN

#230 in Tennessee

#22,344 in US

#42,312 in the World

Knoxville, TN (US)
Knoxville, TN, United States of America

Inductive Signature Technologies, Inc.

Forward Citations = 185

6 inventors:

goldMedal Steven R Hilliard (13 out of 14 patents)

silverMedal Geoffrey W Hilliard (7 out of 8 patents)

bronzeMedal Geoffrey Yerem (4 out of 6 patents)

4.  Michael J Roberts (2 out of 4 patents)

5.  Stephen R Hilliard (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Inductive Signature Technologies, Inc.. Retrieved from https://idiyas.com/company/inductive-signature-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]
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