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For the Inventor, By the Inventor

Greenwich, CT, United States of America

Howmet Corporation


USPTO Granted Patents = 98

% Expired Patents = 10.2



Trademarks = 22

Forward Citations = 1,543

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119 inventors (with patents filed for the assignee):

goldMedal Gregory N Colvin (10 out of 12 patents)

silverMedal Donald E Larsen, Jr (8 out of 11 patents)

bronzeMedal Jeffery S Smith (6 out of 9 patents)

4.  Willard N Kirkendall (5 out of 5 patents)

5.  Scott A Meade (5 out of 5 patents)

6.  Donald R Clemens (5 out of 5 patents)

7.  Kenneth S Murphy (5 out of 12 patents)

8.  William C Basta (5 out of 8 patents)

9.  Boyd A Mueller (5 out of 6 patents)

10.  Darren K Rogers (5 out of 5 patents)

11.  John R Mihalisin (5 out of 9 patents)

12.  David C Punola (5 out of 10 patents)

13.  Gregory R Frank (5 out of 6 patents)

14.  John J Corrigan (4 out of 25 patents)

15.  Timothy J Molamphy (4 out of 4 patents)


Core Competencies:
Investment Casting
Directional Solidification
Thermal Barrier Coating
Electroplating
Ceramic Core
Superalloy
Aluminide Coating
Composite Casting
Fugitive Patterns
Induction Hot Topping
Cooling Features
Weld Repair

98 patents:

1. 10711617 - Casting method, apparatus and product (2020-07-14),
2. 10669865 - Internal turbine component electroplating (2020-06-02),
3. 10544690 - Internal airfoil component electroplating (2020-01-28),
4. 10385704 - Internal airfoil component electrolplating (2019-08-20),
5. 10113225 - Maskant for use in aluminizing a turbine component (2018-10-30),
6. 10082032 - Casting method, apparatus, and product (2018-09-25),
7. 9840918 - Internal airfoil component electroplating (2017-12-12),
8. 9835035 - Cast-in cooling features especially for turbine airfoils (2017-12-05),
9. 9828863 - Internal turbine component electroplating (2017-11-28),
10. 9404372 - Pt-Al-Hf/Zr coating and method (2016-08-02),
11. 9381569 - Vacuum or air casting using induction hot topping (2016-07-05),
12. 9284846 - Pt-Al-Hf/Zr coating and method (2016-03-15),
13. 9068251 - Alloy for directional solidification and component made of stem-shaped crystals (2015-06-30),
14. 8997836 - Ceramic core with composite insert for casting airfoils (2015-04-07),
15. 8915289 - Ceramic core with composite insert for casting airfoils (2014-12-23),
Howmet Corporation, headquartered in Greenwich, CT, specializes in advanced casting technologies that serve various industries, including aerospace and automotive. The company focuses on innovative processes such as investment casting and directional solidification, which enhance the performance and durability of components. Its expertise extends to thermal barrier coatings, electroplating, and the development of superalloys, ensuring high-quality solutions for demanding applications. Howmet is committed to advancing manufacturing techniques that meet the evolving needs of its global clientele.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Howmet Corporation
98 Patents

#7 in Greenwich, CT

#110 in Connecticut

#3,851 in US

#7,908 in the World

Greenwich, CT (US)
Greenwich, CT, United States of America

Howmet Corporation

Forward Citations = 1,543

119 inventors:

goldMedal Gregory N Colvin (10 out of 12 patents)

silverMedal Donald E Larsen, Jr (8 out of 11 patents)

bronzeMedal Jeffery S Smith (6 out of 9 patents)

4.  Willard N Kirkendall (5 out of 5 patents)

5.  Scott A Meade (5 out of 5 patents)

Please report any incorrect information to [email protected]
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