For the Inventor, By the Inventor

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Arden Hills, MN, United States of America

Resistance Technology, Inc.

USPTO Granted Patents = 17

Forward Citations = 285

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17 inventors (with patents filed for the assignee):

Gerald D Richels (4 out of 4 patents)

Gerald H McDonald (4 out of 5 patents)

Donald R Hagen (4 out of 4 patents)

4. Alexander L Darbut (3 out of 14 patents)

5. Scott J Robinson (2 out of 18 patents)

6. Ricky Lee Fackler (2 out of 4 patents)

7. Michael P Geraci (2 out of 2 patents)

8. Arman E Sundquist (2 out of 2 patents)

9. Lester R Iburg (2 out of 2 patents)

10. Robert J Fretz (1 out of 12 patents)

11. Kurt Bartges (1 out of 1 patent)

12. Alex Darbut (1 out of 1 patent)

13. David R Barwig (1 out of 1 patent)

14. Randolph R Giller (1 out of 1 patent)

15. Jean Daevettila (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 7519193 - Hearing aid circuit reducing feedback (2009-04-14),

2. 6690806 - Various directional/omni-directional hearing aid microphone and housing structures (2004-02-10),

3. 6678386 - Programmable module (2004-01-13),

4. 6597793 - Directional/omni-directional hearing aid microphone and housing (2003-07-22),

5. D438860 - Miniature microphone housing and switch (2001-03-14),

6. D438196 - Miniature microphone housing and switch (2001-02-28),

7. 5818324 - Wire coil potentiometer wiper (1998-10-06),

8. 5784470 - Battery door and faceplate arrangement for a completely in the canal (1998-07-21),

9. 5687242 - Hearing aid controls operable with battery door (1997-11-11),

10. 5500901 - Frequency response adjusting device (1996-03-19),

11. 5463692 - Sandwich switch construction for a hearing aid (1995-10-31),

12. 5157371 - Potentiometer retention mechanism and method of mounting (1992-10-20),

13. 5001762 - Miniature modular volume control and integrated circuit assembly for use (1991-03-19),

14. 4835833 - Method of mounting a potentiometer (1989-06-06),

15. 4649366 - Trimmer control mounted in potentiometer knob (1987-03-10),

Resistance Technology, Inc. is a leading provider of innovative resistance training equipment for fitness enthusiasts and athletes. Our products are designed to enhance strength, endurance, and agility, allowing individuals to achieve their fitness goals effectively. With a focus on quality and performance, Resistance Technology, Inc. is dedicated to helping customers reach their full potential in their fitness journey.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

17 Patents

#5 in Arden Hills, MN

#546 in Minnesota

#18,300 in US

#34,819 in the World

Arden Hills, MN, United States of America

Resistance Technology, Inc.

Forward Citations = 285

17 inventors:

Gerald D Richels (4 out of 4 patents)

Gerald H McDonald (4 out of 5 patents)

Donald R Hagen (4 out of 4 patents)

4. Alexander L Darbut (3 out of 14 patents)

5. Scott J Robinson (2 out of 18 patents)

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