Somerset, PA, United States of America

Keystone Drill Services, Inc.


USPTO Granted Patents = 2

Trademarks = 1

Forward Citations = 13

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4 inventors (with patents filed for the assignee):

goldMedal Thomas A Walker (2 out of 4 patents)

silverMedal Stephen R Means (2 out of 2 patents)

bronzeMedal Richard Smith (1 out of 12 patents)

4 Richard K Smith, Jr (1 out of 1 patent)


2 patents:

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USPTO Data Jan 1 1976 - Dec 2 2025

2 Patents

#7 in Somerset, PA

#3,362 in Pennsylvania

#92,551 in US

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Somerset, PA, United States of America
Forward Citations = 13

4 inventors:

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