For the Inventor, By the Inventor

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Denver, CO, United States of America

Construction Technology, Inc.

USPTO Granted Patents = 11

% Expired Patents = 9.1

CIPO Patents = 2

Trademarks = 1

Forward Citations = 211

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12 inventors (with patents filed for the assignee):

Larry D Beller (3 out of 3 patents)

Kenneth R Friedland (2 out of 2 patents)

Paul T St Louis (2 out of 6 patents)

4. Richard W Levine (2 out of 2 patents)

5. Ronald L Major (1 out of 1 patent)

6. Donna Kelleen Darnell (1 out of 1 patent)

7. James W Martin (1 out of 1 patent)

8. Thomas J Martin (1 out of 1 patent)

9. Raymond E Lance (1 out of 3 patents)

10. Ronald N James (1 out of 1 patent)

11. Charles L Welch (1 out of 3 patents)

12. Johnston R Livingston (1 out of 1 patent)

13. Charles Leroy Welch (0 patent)

11 patents: Sort by Forward Citations

1. 8176990 - Apparatus for removing obstructions from a worksite (2012-05-15),

2. 7472869 - Balancing assembly for rotating cylindrical structures (2009-01-06),

3. 7104510 - Removable balancing assembly for rotating cylindrical structures (2006-09-12),

4. 6988866 - Fork lift attachment for multi-purpose bucket (2006-01-24),

5. 6022184 - Clamp-on fork lift attachments (2000-02-08),

6. 4910891 - Device for attaching earth-working tools to excavating equipment (1990-03-27),

7. 4813163 - Alignment fitting for attaching implements to a backhoe (1989-03-21),

8. 4554635 - Method and apparatus for marking or cutting laminar patterns or forms (1985-11-19),

9. 4551810 - Method and apparatus for designing duct work and for producing patterns (1985-11-05),

10. 4224003 - Backhoe mounted vibrating plate soil compactor (1980-09-23),

11. 4018135 - Hydraulically powered impact device (1977-04-19),

Construction Technology, Inc. is a leading provider of innovative construction solutions for the building industry. With a focus on cutting-edge technology and sustainable practices, we offer a range of services including architectural design, project management, and construction services. Our team of experts is dedicated to delivering high-quality projects on time and within budget. Contact us today to see how we can help you with your next construction project.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

11 Patents

#94 in Denver, CO

#580 in Colorado

#27,450 in US

#51,622 in the World

Denver, CO, United States of America

Construction Technology, Inc.

Forward Citations = 211

12 inventors:

Larry D Beller (3 out of 3 patents)

Kenneth R Friedland (2 out of 2 patents)

Paul T St Louis (2 out of 6 patents)

4. Richard W Levine (2 out of 2 patents)

5. Ronald L Major (1 out of 1 patent)

Please report any incorrect information to [email protected]

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