For the Inventor, By the Inventor

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Denver, CO, United States of America

Keystone Tower Systems, Inc.

USPTO Granted Patents = 33

EPO Patents = 17

Forward Citations = 52

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9 inventors (with patents filed for the assignee):

Eric D Smith (30 out of 43 patents)

Rosalind K Takata (21 out of 21 patents)

Loren Daniel Bridgers (19 out of 19 patents)

4. Alexander H Slocum, Jr (12 out of 154 patents)

5. Daniel Ainge (7 out of 7 patents)

6. Samir A Nayfeh (5 out of 35 patents)

7. Eric Rubio (3 out of 3 patents)

8. Michel Caron (3 out of 3 patents)

9. Alexander H Slocum (1 out of 34 patents)

10. Eric D Simth (0 patent)

Core Competencies:

Flange Fitting

Tubular Structures

Spiral Forming

Wind Turbine

Tapered Structure

Reinforcing

Cylindrical Tube

Control System

Sheet Transitioning

Welded Structure

Tube Stiffening

33 patents: Sort by Forward Citations

1. 12649205 - Flange fitting for tubular structures (2026-06-09),

2. 12629738 - Spiral forming (2026-05-19),

3. 12529265 - Wind turbine tower attachment (2026-01-20),

4. 12297951 - Tubular structure reinforcing (2025-05-13),

5. 12257616 - Control system and method for tapered structure construction (2025-03-25),

6. 12240025 - Sheet transitioning in spiral formed structures (2025-03-04),

7. 12226813 - Tapered structure construction (2025-02-18),

8. 11883907 - Flange fitting for tubular structures (2024-01-30),

9. 11834856 - Tapered spiral welded structure (2023-12-05),

10. 11731181 - Spiral forming (2023-08-22),

11. 11686155 - Wind turbine tower attachment (2023-06-27),

12. 11577292 - Tube stiffening (2023-02-14),

13. 11571727 - Tapered structure construction (2023-02-07),

14. 11559832 - Cylindrical tube formation (2023-01-24),

15. 11529661 - Sheet transitioning in spiral formed structures (2022-12-20),

Keystone Tower Systems, Inc. is a technology company based in Denver, Colorado, specializing in innovative solutions for the renewable energy sector, particularly in wind energy. The company focuses on the design and manufacturing of advanced tower systems that enhance the efficiency and sustainability of wind turbines. By leveraging cutting-edge engineering and materials science, Keystone aims to optimize the performance of wind energy infrastructure, contributing to the global transition towards cleaner energy sources.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Keystone Tower Systems, Inc.

33 Patents

#39 in Denver, CO

#210 in Colorado

#10,288 in US

#20,112 in the World

Denver, CO, United States of America

Keystone Tower Systems, Inc.

Forward Citations = 52

9 inventors:

Eric D Smith (30 out of 43 patents)

Rosalind K Takata (21 out of 21 patents)

Loren Daniel Bridgers (19 out of 19 patents)

4. Alexander H Slocum, Jr (12 out of 154 patents)

5. Daniel Ainge (7 out of 7 patents)

Please report any incorrect information to [email protected]

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