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For the Inventor, By the Inventor

Milwaukee, WI, United States of America

A.o. Smith Corporation


USPTO Granted Patents = 375



Trademarks = 69

Forward Citations = 4,485

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366 inventors (with patents filed for the assignee):

goldMedal Brian Thomas Branecky (37 out of 45 patents)

silverMedal Dan Mircea Ionel (26 out of 34 patents)

bronzeMedal Stephen J Dellinger (17 out of 19 patents)

4.  Alan Edward Lesak (16 out of 18 patents)

5.  William Louis Mehlhorn (15 out of 23 patents)

6.  Terry G Phillips (13 out of 22 patents)

7.  Chih Min Lin (13 out of 18 patents)

8.  Timothy H Houle (12 out of 13 patents)

9.  Dayan Bi (11 out of 11 patents)

10.  Wade C Patterson (11 out of 42 patents)

11.  William James Watkins (10 out of 14 patents)

12.  Robert E Lykes (10 out of 10 patents)

13.  James L King (10 out of 22 patents)

14.  Phillip C Ruehl (9 out of 16 patents)

15.  Norman Richard Long (9 out of 9 patents)


Core Competencies:
Water Heating Systems
UV LED Sterilization
Tankless Water Heaters
Heat Pump Technology
Water Filtration Systems
Contaminant Detection
Gas Water Heating Devices
Electronic Control Systems
Fluid Heating Apparatus
High Efficiency Heat Exchangers
Leakage Detection
Proportional Valve Manufacturing

375 patents:

1. 12467658 - Diffuser for thermal storage tank (2025-11-11),
2. 12442561 - Water heating system and method of operating the same (2025-10-14),
3. D1093558 - Set of water line connections for a water heater (2025-09-16),
4. 12313299 - Water heater with reserve capacity, and method of operating the same (2025-05-27),
5. 12202745 - UV LED sterilizing tank (2025-01-21),
6. 12179166 - Media tank (2024-12-31),
7. 12098867 - Water heating system and method of operating the same (2024-09-24),
8. D1041985 - Countertop pitcher water filter (2024-09-17),
9. 12090442 - Cartridge filter (2024-09-17),
10. 12037267 - UV LED faucet flow cell (2024-07-16),
11. 12007147 - Flexible connectors for water heater (2024-06-11),
12. 11988414 - System and method for control of electric water heater (2024-05-21),
13. 11982487 - Defrosting control method, central controller and heating system (2024-05-14),
14. 11920923 - Water heater, and scale detection system and method (2024-03-05),
15. 11892393 - Detection system and method for determining contaminant concentration in feed water stream (2024-02-06),
A. O. Smith Corporation is a leading manufacturer of residential and commercial water heaters, boilers, and water treatment products. With a history dating back to 1874, the company is committed to delivering high-quality, innovative solutions for water heating and purification. A. O. Smith operates globally and is known for its reliable and energy-efficient products, backed by exceptional customer service.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

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375 Patents

#5 in Milwaukee, WI

#27 in Wisconsin

#1,190 in US

#2,387 in the World

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Milwaukee, WI, United States of America

A.o. Smith Corporation

Forward Citations = 4,485

366 inventors:

goldMedal Brian Thomas Branecky (37 out of 45 patents)

silverMedal Dan Mircea Ionel (26 out of 34 patents)

bronzeMedal Stephen J Dellinger (17 out of 19 patents)

4.  Alan Edward Lesak (16 out of 18 patents)

5.  William Louis Mehlhorn (15 out of 23 patents)

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