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Hemlock, MI, United States of America

Hemlock Semiconductor Operations LLC

USPTO Granted Patents = 9

EPO Patents = 7

Trademarks = 5

Forward Citations = 2

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27 inventors (with patents filed for the assignee):

John Victor Bucci (4 out of 4 patents)

Michael John Molnar (3 out of 9 patents)

S B Reddy Karri (2 out of 4 patents)

4. James C Mundell (2 out of 3 patents)

5. Raymond Anthony Cocco (2 out of 3 patents)

6. Max E Dehtiar (2 out of 3 patents)

7. Patrick J Harder (2 out of 3 patents)

8. Ted M Knowlton (2 out of 4 patents)

9. Michael Matthew Zalar (2 out of 3 patents)

10. Mark Richard Stachowiak (1 out of 1 patent)

11. Charles Allan Stibitz (1 out of 1 patent)

12. John W Hadd (1 out of 2 patents)

13. Robert Scott Leser (1 out of 1 patent)

14. Jonathon Host (1 out of 1 patent)

15. John C Oliva (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 12187617 - Method and apparatus for removal of surface carbon from polysilicon (2025-01-07),

2. 10851459 - Dichlorosilane compensating control strategy for improved polycrystalline silicon growth (2020-12-01),

3. 10345211 - Method of determining a concentration of a material not dissolved by silicon etchants contaminating a product (2019-07-09),

4. 10267574 - Heat exchanger (2019-04-23),

5. 10266414 - Susceptor arrangement for a reactor and method of heating a process gas for a reactor (2019-04-23),

6. 10265671 - Tapered fluidized bed reactor and process for its use (2019-04-23),

7. 10105669 - Tapered fluidized bed reactor and process for its use (2018-10-23),

8. 10005614 - Surface conditioning of conveyor materials or contact surfaces (2018-06-26),

9. 9909231 - Flowable chips and methods for the preparation and use of same, and apparatus for use in the methods (2018-03-06),

Hemlock Semiconductor Operations LLC is a leading manufacturer of polycrystalline silicon, a key raw material used in the production of semiconductors and solar cells. Their high-quality products are known for their reliability and performance, making them a trusted supplier in the industry. With a focus on sustainability and innovation, Hemlock Semiconductor continues to drive advancements in technology and energy efficiency.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

9 Patents

#2 in Hemlock, MI

#1,096 in Michigan

#31,665 in US

Hemlock, MI, United States of America

Hemlock Semiconductor Operations LLC

Forward Citations = 2

27 inventors:

John Victor Bucci (4 out of 4 patents)

Michael John Molnar (3 out of 9 patents)

S B Reddy Karri (2 out of 4 patents)

4. James C Mundell (2 out of 3 patents)

5. Raymond Anthony Cocco (2 out of 3 patents)

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