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For the Inventor, By the Inventor

Cambridge, MA, United States of America

Cdm Smith Inc.


USPTO Granted Patents = 3


Trademarks = 11

Forward Citations = 10

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9 inventors (with patents filed for the assignee):

goldMedal Patrick J Evans (1 out of 3 patents)

silverMedal Karl Hopfensperger (1 out of 1 patent)

bronzeMedal Robert J Kimball (1 out of 2 patents)

4.  Kenneth A Klinko (1 out of 1 patent)

5.  Zubair F Ghafoor (1 out of 1 patent)

6.  David L Ubert (1 out of 1 patent)

7.  Janardhanan Vinoth Upendra (1 out of 1 patent)

8.  T Sai Revanth (1 out of 1 patent)

9.  Patrick R McCafferty (1 out of 1 patent)


3 patents:

1. 12360501 - Pumping efficiency apparatus and method (2025-07-15),
2. 8550750 - Bioremediation process using liquefied petroleum gas (2013-10-08),
3. 8277660 - Method and apparatus for recovery of water containing silica (2012-10-02),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#454 in Cambridge, MA

#3,875 in Massachusetts

#71,953 in US

...
Cambridge, MA, United States of America

Cdm Smith Inc.

Forward Citations = 10

9 inventors:

goldMedal Patrick J Evans (1 out of 3 patents)

silverMedal Karl Hopfensperger (1 out of 1 patent)

bronzeMedal Robert J Kimball (1 out of 2 patents)

4.  Kenneth A Klinko (1 out of 1 patent)

5.  Zubair F Ghafoor (1 out of 1 patent)

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