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Auburn Hills, MI, United States of America

Gkn Sinter Metals Gmbh

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USPTO Granted Patents = 79

% Expired Patents = 25.3

CIPO Patents = 6

EPO Patents = 19

Forward Citations = 237

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80 inventors (with patents filed for the assignee):

Ian W Donaldson (16 out of 18 patents)

Joel H Mandel (14 out of 18 patents)

Timothy E Geiman (10 out of 11 patents)

4. Donald Paul Bishop (8 out of 8 patents)

5. Richard L Hexemer (8 out of 8 patents)

6. Alan C Taylor (8 out of 9 patents)

7. Alfred J Chiesa (8 out of 9 patents)

8. Donald D Cooper (6 out of 7 patents)

9. Henry James Knott (6 out of 6 patents)

10. Virgiliu-Adrian Savu (5 out of 5 patents)

11. David E Lenhart (5 out of 5 patents)

12. Donald J Phillips (5 out of 5 patents)

13. Ewald May (5 out of 9 patents)

14. Gary R Draxler (4 out of 4 patents)

15. Jeffrey W Lemke (4 out of 4 patents)

Core Competencies:

Carburizing Method

Aluminum Alloy

Fatigue Strength

Powder Metal Insert

Sinter Fit

Brazed Components

Differential Gear

Surface Densification

Connecting Rod

Porous Plain Bearing

Piston Manufacturing

Tooling Process

79 patents: Sort by Forward Citations

1. 12629750 - Precipitation hardening powder metal composition (2026-05-19),

2. 12553118 - Variable diffusion carburizing method (2026-02-17),

3. 11794240 - Powder metal alloy composition for sintered powder metal insert for aluminum casting (2023-10-24),

4. 11752550 - Method for improving fatigue strength on sized aluminum powder metal components (2023-09-12),

5. 11662011 - Pump assembly and method for producing a pump assembly (2023-05-30),

6. 11434955 - Method of forming a powder metal insert having a horizontal through hole and method of casting same into an engine component (2022-09-06),

7. 11273489 - Aluminum alloy powder formulations with silicon additions for mechanical property improvements (2022-03-15),

8. 11105369 - Method of producing composite component having brass or bronze using sinter fit (2021-08-31),

9. 11060595 - NVH modification for differential assembly (2021-07-13),

10. 10900552 - Forged composite inner race for a CVJ (2021-01-26),

11. 10888928 - Method of producing composite components using sinter fit (2021-01-12),

12. 10870148 - Aluminum alloy powder metal with transition elements (2020-12-22),

13. 10859117 - Method of forming a powder metal insert having a horizontal through hole (2020-12-08),

14. 10773308 - Rotor and method of manufacturing rotor with equalized surface areas for grinding (2020-09-15),

15. 10596631 - Method of forming a composite component using post-compaction dimensional change (2020-03-24),

Company Overview

GKN Sinter Metals GmbH, headquartered in Auburn Hills, MI, specializes in advanced powder metal technology, focusing on the development and manufacturing of high-performance components. The company is recognized for its expertise in carburizing methods, aluminum alloys, and enhancing fatigue strength in sintered products. Key offerings include powder metal inserts, sinter fit solutions, and brazed components, catering to diverse applications such as differential gears and surface densification, thereby supporting various industries with innovative engineering solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

79 Patents

#22 in

#4,697 in Germany

#9,589 in the World

Auburn Hills, MI, United States of America

Gkn Sinter Metals Gmbh

Forward Citations = 237

80 inventors:

Ian W Donaldson (16 out of 18 patents)

Joel H Mandel (14 out of 18 patents)

Timothy E Geiman (10 out of 11 patents)

4. Donald Paul Bishop (8 out of 8 patents)

5. Richard L Hexemer (8 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gkn Sinter Metals Gmbh. Retrieved from https://idiyas.com/company/gkn-sinter-metals

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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