Sun Valley, CA, United States of America

H. L. Ledeen Associates

Calculating rank

USPTO Granted Patents = 3

Forward Citations = 142

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5 inventors (with patents filed for the assignee):

Howard L Ledeen (1 out of 3 patents)

Robert J Botting (1 out of 2 patents)

Yuichi Nogami (1 out of 1 patent)

4. James B Jerde (1 out of 6 patents)

5. James E Vasbinder (1 out of 2 patents)

3 patents: Sort by Forward Citations

1. 5428989 - Method for locating a pressure transient source in a pipeline and (1995-07-04),

2. 5398542 - Method for determining direction of travel of a wave front and apparatus (1995-03-21),

3. 5085401 - Low power valve actuator (1992-02-04),

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USPTO Data Jan 1 1976 - Nov 3 2026

3 Patents

#26 in Sun Valley, CA

#16,887 in California

#73,976 in US

Sun Valley, CA, United States of America

H. L. Ledeen Associates

Forward Citations = 142

5 inventors:

Howard L Ledeen (1 out of 3 patents)

Robert J Botting (1 out of 2 patents)

Yuichi Nogami (1 out of 1 patent)

4. James B Jerde (1 out of 6 patents)

5. James E Vasbinder (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: H. L. Ledeen Associates. Retrieved from https://idiyas.com/company/h-l-ledeen-associates

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]