For the Inventor, By the Inventor

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Moses Lake, WA, United States of America

Rec Silicon Inc

USPTO Granted Patents = 24

% Expired Patents = 12.5

EPO Patents = 5

Trademarks = 5

Forward Citations = 55

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27 inventors (with patents filed for the assignee):

Michael V Spangler (11 out of 11 patents)

Matthew J Miller (10 out of 10 patents)

Robert J Geertsen (7 out of 7 patents)

4. Gerald A Zeininger (5 out of 7 patents)

5. Stein Julsrud (5 out of 5 patents)

6. E Wayne Osborne (4 out of 4 patents)

7. Walter J Stupin (4 out of 5 patents)

8. Sefa Yilmaz (3 out of 5 patents)

9. Barry Wemp (2 out of 2 patents)

10. William J Onstot (2 out of 2 patents)

11. Levi C Allen (2 out of 2 patents)

12. Paul E Ege (2 out of 2 patents)

13. William C Breneman (1 out of 5 patents)

14. Kahl Brown (1 out of 1 patent)

15. Benjamin Center (1 out of 1 patent)

24 patents: Sort by Forward Citations

1. 11117112 - Pressure-based control of fluidized bed reactor (2021-09-14),

2. 10407310 - System for reducing agglomeration during annealing of flowable, finely divided solids (2019-09-10),

3. 10287171 - Tumbling device for the separation of granular polysilicon and polysilicon powder (2019-05-14),

4. 10208381 - Apparatus and method for managing a temperature profile using reflective energy in a thermal decomposition reactor (2019-02-19),

5. 10040637 - Oscillatory feeder (2018-08-07),

6. 9962672 - Reactor component placement inside liner wall (2018-05-08),

7. 9695052 - Recovery of hydrohalosilanes from reaction residues (2017-07-04),

8. 9682404 - Method and apparatus for separating fine particulate material from a mixture of coarse particulate material and fine particulate material (2017-06-20),

9. 9662628 - Non-contaminating bonding material for segmented silicon carbide liner in a fluidized bed reactor (2017-05-30),

10. 9587993 - Probe assembly for a fluid bed reactor (2017-03-07),

11. 9580327 - Method and apparatus for consolidation of granular silicon and measuring non-metals content (2017-02-28),

12. 9463982 - Fouling reduction in hydrochlorosilane production (2016-10-11),

13. 9446367 - Joint design for segmented silicon carbide liner in a fluidized bed reactor (2016-09-20),

14. 9440262 - Apparatus and method for silicon powder management (2016-09-13),

15. 9404177 - Obstructing member for a fluidized bed reactor (2016-08-02),

Company Overview

Rec Silicon Inc, headquartered in Moses Lake, Washington, specializes in the development and manufacturing of advanced silicon materials. The company focuses on producing high-purity silicon used in various applications, including solar energy and semiconductor industries. With a strong emphasis on innovation, Rec Silicon is committed to enhancing the efficiency and sustainability of silicon production processes, contributing to the growth of renewable energy technologies and the broader electronics market.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

24 Patents

#1 in Moses Lake, WA

#309 in Washington

#13,884 in US

#26,660 in the World

Moses Lake, WA, United States of America

Rec Silicon Inc

Forward Citations = 55

27 inventors:

Michael V Spangler (11 out of 11 patents)

Matthew J Miller (10 out of 10 patents)

Robert J Geertsen (7 out of 7 patents)

4. Gerald A Zeininger (5 out of 7 patents)

5. Stein Julsrud (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Rec Silicon Inc. Retrieved from https://idiyas.com/company/rec-silicon

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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