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For the Inventor, By the Inventor

Charlotte, NC, United States of America

Hamilton Sundstrand Corporation


USPTO Granted Patents = 4,647



Trademarks = 12

Forward Citations = 16,147

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2,155 inventors (with patents filed for the assignee):

goldMedal Gregory I Rozman (144 out of 182 patents)

silverMedal Glenn C Lemmers, Jr (141 out of 141 patents)

bronzeMedal Debabrata Pal (141 out of 148 patents)

4.  Donald E Army (120 out of 122 patents)

5.  Craig M Beers (110 out of 111 patents)

6.  Louis J Bruno (98 out of 101 patents)

7.  Richard Andrew Himmelmann (91 out of 133 patents)

8.  Jacek F Gieras (89 out of 107 patents)

9.  Brent J Merritt (79 out of 82 patents)

10.  Leo J Veilleux, Jr (78 out of 89 patents)

11.  Darryl A Colson (69 out of 70 patents)

12.  Christopher McAuliffe (67 out of 74 patents)

13.  Steven J Moss (67 out of 69 patents)

14.  Dhaval S Patel (65 out of 65 patents)

15.  Thomas M Zywiak (60 out of 62 patents)


Core Competencies:
Bus Controller
Chemical Conversion Coatings
Heat Exchanger
Fluid Recovery Systems
Servo Valve Assembly
Engine Ignition Systems
Air-Cooled Compressor
Hybrid Airfoil
Harmonic Gear Systems
Thermally Deformable Channel
Cryocooler
Hybrid Electric Aircraft Propulsion

4,647 patents:

1. 12531454 - Air cooled electric motor having an increased airflow and a method for increasing the airflow therein (2026-01-20),
2. 12531254 - Emergency power fuel cell with evaporative cooling (2026-01-20),
3. 12529339 - Engine starter circuits for electric machines (2026-01-20),
4. 12528589 - RAM air cooling power recovery (2026-01-20),
5. 12525884 - Input isolated voltage monitor with voltage tracking (2026-01-13),
6. 12524027 - Fuel system with boosted and cooled variable displacement main fuel pump and electromechanical actuators (2026-01-13),
7. 12522939 - Sealed anodization layer (2026-01-13),
8. 12522259 - Hyperloop environmental control system (2026-01-13),
9. 12519412 - Common mode current feed fault protection (2026-01-06),
10. 12519400 - Two-switch exciter drive architecture with single switch modes (2026-01-06),
11. 12519377 - Mechanically switchable electric machines for electrified propulsion (2026-01-06),
12. 12519375 - Header guiding fluid flow to and from cooling channels in a high density motor (2026-01-06),
13. 12517844 - Reduced controller loading and peripheral usage for displacement measurement device excitation (2026-01-06),
14. 12516893 - Heat exchangers with flow-modifying heat exchanger core tubes (2026-01-06),
15. 12516665 - Check valve for RAT re-stow pump (2026-01-06),
Hamilton Sundstrand Corporation is a global manufacturer of aerospace systems and industrial products for a variety of industries including aviation, defense, and energy. With a focus on innovation and customer satisfaction, Hamilton Sundstrand delivers reliable and efficient solutions to meet the complex needs of their clients. From advanced aircraft systems to advanced energy systems, Hamilton Sundstrand is committed to driving advancements in technology to enhance the performance, safety, and sustainability of their products.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 20 2026

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4,647 Patents

#2 in Charlotte, NC

#2 in North Carolina

#91 in US

#196 in the World

...
Charlotte, NC, United States of America

Hamilton Sundstrand Corporation

Forward Citations = 16,147

2,155 inventors:

goldMedal Gregory I Rozman (144 out of 182 patents)

silverMedal Glenn C Lemmers, Jr (141 out of 141 patents)

bronzeMedal Debabrata Pal (141 out of 148 patents)

4.  Donald E Army (120 out of 122 patents)

5.  Craig M Beers (110 out of 111 patents)

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