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For the Inventor, By the Inventor

Kalispell, MT, United States of America

Semitool, Inc.


USPTO Granted Patents = 382

% Expired Patents = 25.7


Trademarks = 4

Forward Citations = 9,242

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144 inventors (with patents filed for the assignee):

goldMedal Kyle Moran Hanson (71 out of 114 patents)

silverMedal Raymon F Thompson (64 out of 69 patents)

bronzeMedal Daniel J Woodruff (57 out of 83 patents)

4.  Eric J Bergman (47 out of 88 patents)

5.  Gary L Curtis (39 out of 43 patents)

6.  Paul R McHugh (36 out of 84 patents)

7.  Gregory J Wilson (35 out of 92 patents)

8.  Thomas Lee Ritzdorf (35 out of 38 patents)

9.  Robert W Berner (30 out of 30 patents)

10.  Aleksander Owczarz (28 out of 69 patents)

11.  Jeffry Alan Davis (26 out of 27 patents)

12.  Randy Harris (22 out of 41 patents)

13.  Lyndon W Graham (22 out of 24 patents)

14.  Steven L Peace (20 out of 24 patents)

15.  Thomas H Oberlitner (19 out of 24 patents)


Core Competencies:
Wafer Handling
Electrochemical Processor
Microfeature Workpieces
Semiconductor Processing
Electroplating
Thinning Process
Thermal Processing
Automated Systems
End-Effectors
Liquid Agitation
Reactor Design
Mass Transfer

382 patents:

1. 8028978 - Wafer handling system (2011-10-04),
2. 7935230 - Electro-chemical processor (2011-05-03),
3. 7934898 - High throughput semiconductor wafer processing (2011-05-03),
4. 7931786 - Apparatus and method for agitating liquids in wet chemical processing of microfeature workpieces (2011-04-26),
5. 7927469 - Electro-chemical processor (2011-04-19),
6. 7909967 - Electro-chemical processor (2011-03-22),
7. 7898089 - Semiconductor workpiece (2011-03-01),
8. 7857958 - Method and apparatus for controlling vessel characteristics, including shape and thieving current for processing microfeature workpieces (2010-12-28),
9. 7849865 - System for processing a workpiece (2010-12-14),
10. 7842173 - Apparatus and methods for electrochemical processing of microfeature wafers (2010-11-30),
11. 7811422 - Electro-chemical processor with wafer retainer (2010-10-12),
12. 7794573 - Systems and methods for electrochemically processing microfeature workpieces (2010-09-14),
13. 7645366 - Microelectronic workpiece holders and contact assemblies for use therewith (2010-01-12),
14. 7628898 - Method and system for idle state operation (2009-12-08),
15. 7625821 - Process and apparatus for thinning a semiconductor workpiece (2009-12-01),
Semitool, Inc. is a leading provider of wet processing equipment for semiconductor and advanced packaging applications. With over 40 years of experience, Semitool offers innovative solutions for wafer cleaning, surface preparation, electrochemical deposition, and electrochemical etching. Their cutting-edge technologies enable customers to achieve higher yields and improve process efficiency in the semiconductor manufacturing industry.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

Semitool, Inc.
382 Patents

#1 in Kalispell, MT

#2 in Montana

#1,207 in US

#2,412 in the World

Kalispell, MT (US)
Kalispell, MT, United States of America

Semitool, Inc.

Forward Citations = 9,242

144 inventors:

goldMedal Kyle Moran Hanson (71 out of 114 patents)

silverMedal Raymon F Thompson (64 out of 69 patents)

bronzeMedal Daniel J Woodruff (57 out of 83 patents)

4.  Eric J Bergman (47 out of 88 patents)

5.  Gary L Curtis (39 out of 43 patents)

Please report any incorrect information to [email protected]
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