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For the Inventor, By the Inventor

Westlake, OH, United States of America

The Pipe Line Development Company


USPTO Granted Patents = 15



Forward Citations = 232

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15 inventors (with patents filed for the assignee):

goldMedal William B Smith (4 out of 4 patents)

silverMedal Gregory D Schroeder (3 out of 3 patents)

bronzeMedal Elmer V Rogers, Jr (3 out of 3 patents)

4.  Edward B Smith (3 out of 3 patents)

5.  Aaron Z Louden (2 out of 2 patents)

6.  Glenn Beard (2 out of 2 patents)

7.  Joseph B Smith (2 out of 3 patents)

8.  John A Spisak (2 out of 2 patents)

9.  Jerry Tuck (1 out of 1 patent)

10.  Shon Joseph George Meenathethil (1 out of 1 patent)

11.  Kerrigan Mendicino (1 out of 1 patent)

12.  Christopher S Arthur (1 out of 1 patent)

13.  Vincent E Beasley (1 out of 1 patent)

14.  Leny W Burkett (1 out of 1 patent)

15.  Elmer V Rogers Jr (1 out of 1 patent)


15 patents:

1. 10816126 - Modular split sleeve (2020-10-27),
2. 10571061 - Independently hydraulically clamped and sealed fitting (2020-02-25),
3. 8424925 - Split fitting for pipe (2013-04-23),
4. 6131597 - Method and apparatus for cutting, sealing and opening pipe (2000-10-17),
5. 5899507 - Riser fitting (1999-05-04),
6. 5553898 - Hot-tapping sleeve (1996-09-10),
7. 4976372 - High-pressure hydraulic gun (1990-12-11),
8. 4832379 - Collet grip riser fitting (1989-05-23),
9. 4725082 - Coupling (1988-02-16),
10. 4535822 - Fitting installation device (1985-08-20),
11. 4370995 - Method and apparatus for prenotching a pipeline (1983-02-01),
12. 4355656 - Pipeline plug and bypass (1982-10-26),
13. 4177827 - Pipe plugging device (1979-12-11),
14. 4049234 - Safety cock (1977-09-20),
15. 3954288 - Pipe fitting with self-testing seals and method (1976-05-04),
The Pipe Line Development Company is a leading provider of pipeline construction and maintenance services. With over 50 years of experience in the industry, we have built a reputation for delivering high-quality and cost-effective solutions to our clients. Our team of skilled professionals is dedicated to ensuring the successful completion of every project, from initial design to final inspection. Visit our website to learn more about our services and how we can help with your pipeline needs.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 23 2025

15 Patents

#6 in Westlake, OH

#839 in Ohio

#20,399 in US

#38,696 in the World

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Westlake, OH, United States of America

The Pipe Line Development Company

Forward Citations = 232

15 inventors:

goldMedal William B Smith (4 out of 4 patents)

silverMedal Gregory D Schroeder (3 out of 3 patents)

bronzeMedal Elmer V Rogers, Jr (3 out of 3 patents)

4.  Edward B Smith (3 out of 3 patents)

5.  Aaron Z Louden (2 out of 2 patents)

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