For the Inventor, By the Inventor

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Kokomo, IN, United States of America

Haynes International, Inc.

USPTO Granted Patents = 42

CIPO Patents = 6

EPO Patents = 9

Trademarks = 26

Forward Citations = 273

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30 inventors (with patents filed for the assignee):

Paul Crook (12 out of 16 patents)

Dwaine L Klarstrom (10 out of 13 patents)

Lee Pike (5 out of 6 patents)

4. S Krishna Srivastava (4 out of 4 patents)

5. Steven J Matthews (4 out of 6 patents)

6. Lee M Pike, Jr (4 out of 4 patents)

7. Vinay P Deodeshmukh (3 out of 3 patents)

8. Michael F Rothman (3 out of 7 patents)

9. Robert B Herchenroeder (3 out of 16 patents)

10. Venkat R Ishwar (2 out of 2 patents)

11. George Y Lai (2 out of 6 patents)

12. Ramanathan Krishnamurthy (2 out of 2 patents)

13. Gregory L Hoback (2 out of 2 patents)

14. James L Meyers (2 out of 2 patents)

15. Narasi Sridhar (2 out of 3 patents)

Core Competencies:

Cobalt-Chromium Alloys

Corrosion Resistance

Heat Treatments

Wroughtable Alloys

Oxidation Resistance

Gas Turbine Engines

Superalloys

Ductility

Nickel-Molybdenum Alloys

Ceramic Inserts

Aging Treatment

Welding Techniques

42 patents: Sort by Forward Citations

1. 12577640 - Wroughtable, chromium-bearing, cobalt-based alloys with improved resistance to galling and chloride-induced crevice attack (2026-03-17),

2. 11976346 - Solar tower system containing molten chloride salts (2024-05-07),

3. 11702724 - Cobalt-chromium alloy resistant to high speed/self-coupled sliding wear (2023-07-18),

4. 11453939 - Heat treatments for improved ductility of Ni—Cr—Co—Mo—Ti—Al alloys (2022-09-27),

5. 10577680 - Fabricable, high strength, oxidation resistant Ni—Cr—Co—Mo—Al alloys (2020-03-03),

6. 10358699 - Fabricable, high strength, oxidation resistant Ni—Cr—Co—Mo—Al Alloys (2019-07-23),

7. 9970091 - Method for producing two-phase Ni—Cr—Mo alloys (2018-05-15),

8. 9938609 - Acid and alkali resistant Ni—Cr—Mo—Cu alloys with critical contents of chromium and copper (2018-04-10),

9. 9551051 - Weldable oxidation resistant nickel-iron-chromium aluminum alloy (2017-01-24),

10. 9399807 - Acid and alkali resistant Ni—Cr—Mo—Cu alloys with critical contents of chromium and copper (2016-07-26),

11. 9394591 - Acid and alkali resistant nickel-chromium-molybdenum-copper alloys (2016-07-19),

12. 8662143 - Mold having ceramic insert (2014-03-04),

13. 8545643 - High temperature low thermal expansion Ni-Mo-Cr alloy (2013-10-01),

14. 8506883 - Weldable oxidation resistant nickel-iron-chromium-aluminum alloy (2013-08-13),

15. 8075839 - Cobalt-chromium-iron-nickel alloys amenable to nitride strengthening (2011-12-13),

Company Overview

Haynes International, Inc. is a leading manufacturer specializing in high-performance alloys, particularly in the fields of aerospace, chemical processing, and energy generation. Headquartered in Kokomo, Indiana, the company focuses on developing advanced materials such as cobalt-chromium and nickel-molybdenum alloys, which are essential for applications requiring exceptional oxidation and corrosion resistance. Their expertise extends to innovative solutions for gas turbine engines and welding superalloys, catering to industries that demand reliability under extreme conditions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

42 Patents

#3 in Kokomo, IN

#128 in Indiana

#8,258 in US

#16,354 in the World

Kokomo, IN, United States of America

Haynes International, Inc.

Forward Citations = 273

30 inventors:

Paul Crook (12 out of 16 patents)

Dwaine L Klarstrom (10 out of 13 patents)

Lee Pike (5 out of 6 patents)

4. S Krishna Srivastava (4 out of 4 patents)

5. Steven J Matthews (4 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Haynes International, Inc.. Retrieved from https://idiyas.com/company/haynes-international

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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