For the Inventor, By the Inventor

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Santa Clara, CA, United States of America

Prometrix Corporation

USPTO Granted Patents = 19

Trademarks = 2

Forward Citations = 1,435

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21 inventors (with patents filed for the assignee):

Chester L Mallory (13 out of 17 patents)

David S Perloff (9 out of 9 patents)

Leslie A Lane (7 out of 7 patents)

4. Lynn V Lybeck (6 out of 6 patents)

5. Hung V Pham (3 out of 5 patents)

6. Wayne K Borglum (3 out of 3 patents)

7. Shoji Kumagi (2 out of 2 patents)

8. Timothy R Corle (2 out of 2 patents)

9. Younus Vora (1 out of 5 patents)

10. Barry G Broome (1 out of 35 patents)

11. Adam Eales Norton (1 out of 51 patents)

12. Phillip D Wasserman (1 out of 1 patent)

13. Philip D Wasserman (1 out of 7 patents)

14. Edric H Tong (1 out of 1 patent)

15. Walter H Johnson (1 out of 3 patents)

19 patents: Sort by Forward Citations

1. D434202 - Coin redemption apparatus (2000-11-21),

2. D432159 - Coin counting and sorting apparatus (2000-10-17),

3. 5486701 - Method and apparatus for measuring reflectance in two wavelength bands (1996-01-23),

4. 5386317 - Method and apparatus for imaging dense linewidth features using an (1995-01-31),

5. 5260668 - Semiconductor surface resistivity probe with semiconductor temperature (1993-11-09),

6. 5226118 - Data analysis system and method for industrial process control systems (1993-07-06),

7. 5067805 - Confocal scanning optical microscope (1991-11-26),

8. 4967381 - Process control interface system for managing measurement data (1990-10-30),

9. 4951190 - Multilevel menu and hierarchy for selecting items and performing tasks (1990-08-21),

10. 4945220 - Autofocusing system for microscope having contrast detection means (1990-07-31),

11. 4907931 - Apparatus for handling semiconductor wafers (1990-03-13),

12. 4873623 - Process control interface with simultaneously displayed three level (1989-10-10),

13. 4843538 - Multi-level dynamic menu which suppresses display of items previously (1989-06-27),

14. 4805089 - Process control interface system for managing measurement data (1989-02-14),

15. 4776695 - High accuracy film thickness measurement system (1988-10-11),

Prometrix Corporation is a leading provider of advanced metrology solutions for the semiconductor industry. Our innovative technologies enable customers to improve their process control and yield, resulting in higher quality products and increased productivity. With a focus on accuracy and precision, Prometrix continues to push the boundaries of metrology to meet the evolving needs of our customers.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

19 Patents

#173 in Santa Clara, CA

#4,094 in California

#17,113 in US

#32,592 in the World

Santa Clara, CA, United States of America

Prometrix Corporation

Forward Citations = 1,435

21 inventors:

Chester L Mallory (13 out of 17 patents)

David S Perloff (9 out of 9 patents)

Leslie A Lane (7 out of 7 patents)

4. Lynn V Lybeck (6 out of 6 patents)

5. Hung V Pham (3 out of 5 patents)

Please report any incorrect information to [email protected]

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