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For the Inventor, By the Inventor

Amesbury, MA, United States of America

Amesbury Group, Inc.


USPTO Granted Patents = 100

% Expired Patents = 24.0


Trademarks = 4

Forward Citations = 1,115

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56 inventors (with patents filed for the assignee):

goldMedal Gary E Tagtow (26 out of 28 patents)

silverMedal Gary R Newman (23 out of 24 patents)

bronzeMedal Tracy Lammers (20 out of 22 patents)

4.  Wilbur James Kellum, Iii (17 out of 17 patents)

5.  Bruce A Hagemeyer (17 out of 31 patents)

6.  Lawrence John VerSteeg (13 out of 14 patents)

7.  Dan Raap (12 out of 12 patents)

8.  Douglas John Criddle (11 out of 12 patents)

9.  Peter E Mertinooke (11 out of 15 patents)

10.  Stuart J Uken (10 out of 10 patents)

11.  Allen Rickenbaugh (10 out of 10 patents)

12.  Michael Lee Anderson (9 out of 10 patents)

13.  Tyler Welbig (7 out of 7 patents)

14.  Travis Steen (6 out of 6 patents)

15.  John E Huntress (6 out of 6 patents)


Core Competencies:
Window Balance
Electronic Deadbolts
Weatherstripping
Sliding Door Lock
Sash Guide
Locking Mechanisms
Constant Force
Modular Systems
Access Handles
Tilt Mechanism
High Security Locks
Manufacturing Methods

100 patents:

1. 12410648 - Window balance shoes for a pivotable window (2025-09-09),
2. 12091895 - Window balance shoes for a pivotable window (2024-09-17),
3. 12091894 - Window balance systems (2024-09-17),
4. 12044061 - Sash guide (2024-07-23),
5. 11993967 - Sliding door rollers (2024-05-28),
6. 11879281 - Automatic window sash interlock (2024-01-23),
7. 11834866 - Flexible coupling for electronic deadbolt systems (2023-12-05),
8. 11692380 - Window sash lock and tilt mechanism (2023-07-04),
9. 11661771 - Electronic drive for door locks (2023-05-30),
10. 11634931 - Modular electronic deadbolt systems (2023-04-25),
11. 11560743 - Window balance systems (2023-01-24),
12. 11441333 - Electronic deadbolt systems (2022-09-13),
13. 11352821 - Inverted constant force window balance having slidable coil housing (2022-06-07),
14. 11248396 - Sealed keeper sensors (2022-02-15),
15. 11193318 - Window balance shoes for a pivotable window (2021-12-07),
Company Overview
Amesbury Group, Inc. is a prominent manufacturer specializing in window balance systems and related locking mechanisms. Based in Amesbury, MA, the company focuses on innovative solutions for the window and door industry, including electronic deadbolts, weatherstripping, and modular systems. With a commitment to quality and performance, Amesbury Group serves a diverse range of clients, providing essential components that enhance the functionality and security of residential and commercial openings.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Amesbury Group, Inc. USPTO Patent Assignee Logo
100 Patents

#1 in Amesbury, MA

#207 in Massachusetts

#3,795 in US

#7,778 in the World

Amesbury, MA (US)
Amesbury, MA, United States of America

Amesbury Group, Inc.

Forward Citations = 1,115

56 inventors:

goldMedal Gary E Tagtow (26 out of 28 patents)

silverMedal Gary R Newman (23 out of 24 patents)

bronzeMedal Tracy Lammers (20 out of 22 patents)

4.  Wilbur James Kellum, Iii (17 out of 17 patents)

5.  Bruce A Hagemeyer (17 out of 31 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Amesbury Group, Inc.. Retrieved from https://idiyas.com/company/amesbury-group

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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