For the Inventor, By the Inventor

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Alexandria, VA, United States of America

Mpr Associates, Inc.

Calculating rank

USPTO Granted Patents = 27

% Expired Patents = 7.4

Trademarks = 1

Forward Citations = 292

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14 inventors (with patents filed for the assignee):

Sterling J Weems (20 out of 26 patents)

William E Sylvester (9 out of 9 patents)

Patrick J Butler (5 out of 7 patents)

4. Noman Cole (4 out of 4 patents)

5. H William McCurdy (3 out of 3 patents)

6. William R Schmidt (2 out of 3 patents)

7. Paul Knittle (1 out of 1 patent)

8. Ryan Downs (1 out of 3 patents)

9. Thomas Lestina (1 out of 1 patent)

10. Eric Runnerstrom (1 out of 1 patent)

11. Melissa Bradley (1 out of 1 patent)

12. David G Strawson (1 out of 1 patent)

13. Harold William McCurdy, Jr (1 out of 1 patent)

14. Thomas E Greene (1 out of 1 patent)

Core Competencies:

Boiling Water Reactor

Shroud Repair

Nuclear Fuel Cask

Weld Reinforcement

Fluid Distribution

Irradiation Device

Seismic Support

Feedwater Sparger

Jet Pump Riser

Preload Detection

Core Spray Piping

Clamp Mechanism

27 patents: Sort by Forward Citations

1. 11280412 - Stem anti-rotation device for nuclear reactor power plant gate valves and maintenance method using the stem anti-rotation device (2022-03-22),

2. 7505546 - Method of preventing separation of feedwater sparger end bracket assemblies (2009-03-17),

3. 7492851 - Clamp for feedwater sparger end bracket assemblies and method of preventing separation of feedwater sparger end bracket assemblies (2009-02-17),

4. 7185798 - Apparatus and method for mechanically reinforcing the welds between riser pipes and riser braces in boiling water reactors (2007-03-06),

5. 6535827 - Method and apparatus for detecting and isolating a rupture in fluid distribution system (2003-03-18),

6. 6464424 - Repaired shroud assembly for boiling water reactor (2002-10-15),

7. 6437344 - Product irradiation device and method of irradiating products using the same (2002-08-20),

8. 6371685 - Wedge clamp for repairing boiling water reactor shroud (2002-04-16),

9. 6264203 - Methods and apparatus for repairing a cracked jet pump riser in a boiling water reactor utilizing a spacer camp (2001-07-24),

10. 6195892 - Method for replacing cracked core spray supply piping in a boiling water reactor (2001-03-06),

11. 6178635 - Method for repairing vertical welds in a boiling water reactor shroud using a clamp with eccentric pins sealed against an interior of the shroud (2001-01-30),

12. 6167618 - Method for repairing vertical welds in a boiling water reactor shroud using a clamp with eccentric pins (2001-01-02),

13. 6138353 - Method for repairing vertical welds in a boiling water reactor shroud (2000-10-31),

14. 5964029 - Apparatus for repairing cracked core spray supply piping in a boiling (1999-10-12),

15. 5839192 - Method and apparatus for repairing cracked core spray supply piping in a (1998-11-24),

Company Overview

Mpr Associates, Inc. is a technology and engineering firm based in Alexandria, VA, specializing in the development of innovative solutions across various sectors, including energy, defense, and environmental engineering. The company focuses on providing advanced research and consulting services, leveraging its expertise in systems engineering, modeling, and simulation to address complex challenges. Mpr Associates is committed to enhancing operational efficiency and sustainability through its cutting-edge technologies and methodologies.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

27 Patents

#3 in Alexandria, VA

#215 in Virginia

#12,432 in US

#24,046 in the World

Alexandria, VA, United States of America

Mpr Associates, Inc.

Forward Citations = 292

14 inventors:

Sterling J Weems (20 out of 26 patents)

William E Sylvester (9 out of 9 patents)

Patrick J Butler (5 out of 7 patents)

4. Noman Cole (4 out of 4 patents)

5. H William McCurdy (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mpr Associates, Inc.. Retrieved from https://idiyas.com/company/mpr-associates

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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