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For the Inventor, By the Inventor

Knoxville, TN, United States of America

Patent Development, Ltd.


USPTO Granted Patents = 3

Forward Citations = 12

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1 inventor (with patents filed for the assignee):

goldMedal Leonard R Nitzberg (3 out of 23 patents)


3 patents:

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 - Sep 29 2026

3 Patents

#89 in Knoxville, TN

#771 in Tennessee

#73,766 in US

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

Patent Development, Ltd.

Forward Citations = 12

1 inventor:

goldMedal Leonard R Nitzberg (3 out of 23 patents)

Please report any incorrect information to [email protected]
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