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St. Marys, PA, United States of America

Keystone Powdered Metal Company

USPTO Granted Patents = 20

Forward Citations = 6

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10 inventors (with patents filed for the assignee):

Gary L Anderson (11 out of 20 patents)

Peter G Imbrogno (9 out of 11 patents)

Bradley Reiter (5 out of 5 patents)

4. Kevin Brunner (3 out of 3 patents)

5. Kevin A Bauer (3 out of 3 patents)

6. Matthew G Herbstritt (2 out of 2 patents)

7. Peter Stauffer (2 out of 2 patents)

8. Timothy E Geiman (1 out of 11 patents)

9. John C Kosco (1 out of 11 patents)

10. Barry Kline (1 out of 2 patents)

20 patents: Sort by Forward Citations

1. 12365029 - Acoustical dampening powder metal parts (2025-07-22),

2. 12285803 - Method for manufacturing combination or compound gears (2025-04-29),

3. 12251759 - Powder metal parts with improved machinability (2025-03-18),

4. 12186808 - Process for manufacturing toroid parts (2025-01-07),

5. 12103075 - Method for making powder metal prototypes by 3-D printing (2024-10-01),

6. 11999010 - Attachment of powdered metal to powder forged or wrought materials (2024-06-04),

7. 11992880 - Acoustical dampening powder metal parts (2024-05-28),

8. 11920643 - Two-way clutch assembly (2024-03-05),

9. 11883883 - Process for manufacturing toroid parts (2024-01-30),

10. 11850662 - High strength part having powder metal internal ring (2023-12-26),

11. 11806799 - Sinter brazing of powdered metal sinter hard matertial component to a wrought steel component (2023-11-07),

12. 11707785 - Powder metal parts with improved machinability (2023-07-25),

13. D933113 - Rocker (2021-10-12),

14. D931920 - Rocker with circumferential tail (2021-09-28),

15. 11097346 - Process for manufacturing toroid parts (2021-08-24),

Keystone Powdered Metal Company is a leading manufacturer of powdered metal components for a variety of industries. With over 50 years of experience, Keystone offers high-quality powdered metal parts that are durable, cost-effective, and customizable to meet the specific needs of their clients. Their state-of-the-art facilities and advanced technology ensure top-notch production and strict quality control. Keystone's commitment to excellence and innovation has made them a trusted partner for businesses worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

20 Patents

#1 in St. Marys, PA

#594 in Pennsylvania

#15,862 in US

#30,324 in the World

St. Marys, PA, United States of America

Keystone Powdered Metal Company

Forward Citations = 6

10 inventors:

Gary L Anderson (11 out of 20 patents)

Peter G Imbrogno (9 out of 11 patents)

Bradley Reiter (5 out of 5 patents)

4. Kevin Brunner (3 out of 3 patents)

5. Kevin A Bauer (3 out of 3 patents)

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