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For the Inventor, By the Inventor

Menlo Park, CA, United States of America

Ultra Clean Technology Systems and Services Inc.


USPTO Granted Patents = 2

Forward Citations = 3

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2 inventors (with patents filed for the assignee):

goldMedal Tadahiro Ohmi (2 out of 201 patents)

silverMedal Sowmya Krishnan (2 out of 2 patents)


2 patents:

1. 6518534 - Welding apparatus for forming chromium oxide passivated film at welded portion (2003-02-11),
2. 6172320 - Welding method for forming chromium oxide passivated film at welded portion (2001-01-09),
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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#318 in Menlo Park, CA

#20,556 in California

#92,641 in US

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Menlo Park, CA, United States of America

Ultra Clean Technology Systems and Services Inc.

Forward Citations = 3

2 inventors:

goldMedal Tadahiro Ohmi (2 out of 201 patents)

silverMedal Sowmya Krishnan (2 out of 2 patents)

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