IDiyas

For the Inventor, By the Inventor

Owatonna, MN, United States of America

Truth Hardware Corporation


USPTO Granted Patents = 146



Trademarks = 31

Forward Citations = 2,356

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85 inventors (with patents filed for the assignee):

goldMedal Gregory J Vetter (39 out of 60 patents)

silverMedal Brian D Dallmann (18 out of 20 patents)

bronzeMedal Douglas A Nolte (13 out of 20 patents)

4.  Glen M Wolf (12 out of 12 patents)

5.  Sherry Lynn Jones (11 out of 151 patents)

6.  Stephen M Piltingsrud (9 out of 12 patents)

7.  Douglas G Johnson (8 out of 8 patents)

8.  Leonard P Bauman (7 out of 8 patents)

9.  Joseph P Landherr (7 out of 8 patents)

10.  Perry L Virkler (7 out of 7 patents)

11.  Craig M Doring (6 out of 6 patents)

12.  Yoshikazu Nakanishi (6 out of 11 patents)

13.  Derek Ronald Gramstad (6 out of 7 patents)

14.  Manabu Shimoji (6 out of 6 patents)

15.  Todd A Anderson (6 out of 6 patents)


Core Competencies:
Window Lock Systems
Casement Window Operators
Sliding Door Locks
Multi-Point Lock Mechanisms
Tamper Resistant Devices
Adjustable Sash Lifters
Integrated Lock Mechanisms
Hinged Light Panel Hardware
Friction Hinges
Sash Opening Limiters
Self-Locating Tie Bar Guides
Negative Loading Snubbers

146 patents:

1. 12442228 - Flex drive tie-bar window lock system (2025-10-14),
2. 12163361 - Roll-form tie bar and guide for casement window (2024-12-10),
3. D1031413 - Window operator handle and cover (2024-06-18),
4. 11946305 - Window operator handle and cover with magnetic securing features and detent (2024-04-02),
5. 11927044 - Window operator handle and cover with magnetic securing features (2024-03-12),
6. 11866968 - Tie bar and guide for casement window (2024-01-09),
7. 11692381 - Tamper resistant sash opening limiter for casement and awning windows (2023-07-04),
8. D930465 - Casement window operator cover and folding handle (2021-09-14),
9. D913783 - Casement window operator cover and handle (2021-03-23),
10. 10787853 - Integrated casement window operator and lock with anti-backdrive feature (2020-09-29),
11. 10648207 - Opening control device for casement window (2020-05-12),
12. D874901 - Casement window operator handle and cover (2020-02-11),
13. 10557295 - Self locating tie bar guide for sash lock tie bars (2020-02-11),
14. D866289 - Patio door handle (2019-11-12),
15. 10392839 - Locking bolt with surface-mounted transmission (2019-08-27),
Truth Hardware Corporation is a leading manufacturer of window and door hardware solutions. With a legacy of over 70 years in the industry, we are committed to delivering innovative, high-quality products for residential and commercial applications. Our comprehensive range of hardware includes hinges, handles, locks, operators, and weatherstrip systems. We take pride in our exceptional customer service, global reach, and commitment to sustainability. Visit our website to explore our product offerings and experience the reliability and performance of Truth Hardware.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

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146 Patents

#1 in Owatonna, MN

#65 in Minnesota

#2,584 in US

#5,416 in the World

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Owatonna, MN, United States of America

Truth Hardware Corporation

Forward Citations = 2,356

85 inventors:

goldMedal Gregory J Vetter (39 out of 60 patents)

silverMedal Brian D Dallmann (18 out of 20 patents)

bronzeMedal Douglas A Nolte (13 out of 20 patents)

4.  Glen M Wolf (12 out of 12 patents)

5.  Sherry Lynn Jones (11 out of 151 patents)

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