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Knoxville, TN, United States of America

Patent Development, Ltd.

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USPTO Granted Patents = 3

Forward Citations = 12

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1 inventor (with patents filed for the assignee):

Leonard R Nitzberg (3 out of 23 patents)

3 patents: Sort by Forward Citations

1. 4568126 - Method and machine for removing blockage and silt from abandoned auger (1986-02-04),

2. 4438699 - Method for remote positioning of explosive charges in mining voids (1984-03-27),

3. 4205881 - Machine and method for mining hard material in-situ between adjacent (1980-06-03),

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USPTO Data Jan 1 1976 - Nov 3 2026

3 Patents

#89 in Knoxville, TN

#772 in Tennessee

#73,926 in US

Knoxville, TN, United States of America

Patent Development, Ltd.

Forward Citations = 12

1 inventor:

Leonard R Nitzberg (3 out of 23 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Patent Development, Ltd.. Retrieved from https://idiyas.com/company/patent-development

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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