For the Inventor, By the Inventor

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Auburn, WA, United States of America

Oldcastle Precast, Inc.

USPTO Granted Patents = 57

% Expired Patents = 10.5

CIPO Patents = 2

Trademarks = 21

Forward Citations = 632

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54 inventors (with patents filed for the assignee):

Nguyen Thai Dang (8 out of 12 patents)

Eric C Freeman (8 out of 13 patents)

Harold G Messenger (6 out of 6 patents)

4. Douglas Paul Allard (5 out of 22 patents)

5. Ken Pasco (5 out of 5 patents)

6. George Clinton Brookhart (5 out of 5 patents)

7. Daniel M Nyce (4 out of 7 patents)

8. Kelly Patterson (4 out of 4 patents)

9. Thomas G Harmon (4 out of 6 patents)

10. Kenneth Baur (3 out of 6 patents)

11. J Brad Boulton (3 out of 3 patents)

12. Steve Kingsland (3 out of 3 patents)

13. Jackson Bishop (3 out of 3 patents)

14. James A Baker (3 out of 3 patents)

15. Paul B Miller (3 out of 3 patents)

Core Competencies:

Grease Interceptor

Utility Vault

Stormwater Treatment

Precast Concrete

Bioretention System

Modular Filtration

Locking Subgrade Vault

Concrete Panel

Lifting System

Adjustable Connector

Foundation Slab

Landscape Edger

57 patents: Sort by Forward Citations

1. 11578480 - Grease interceptor and method of use thereof (2023-02-14),

2. 10240316 - Locking subgrade vault (2019-03-26),

3. D841279 - Subgrade vault (2019-02-19),

4. 10197088 - Tamper resistant closure mechanism for a utility vault (2019-02-05),

5. 10136530 - Utility vault interlocking lid seat (2018-11-20),

6. 10132052 - Utility vault support bar snap feature (2018-11-20),

7. 10118846 - Tree box filter with hydromodification panels (2018-11-06),

8. D815668 - Precast valve housing (2018-04-17),

9. 9932157 - Locking subgrade vault (2018-04-03),

10. 9919853 - Locking subgrade vault (2018-03-20),

11. 9719537 - Adjustable mounting bracket and support (2017-08-01),

12. 9708790 - System and method for foundation slab liquid collection and management (2017-07-18),

13. 9587392 - Water pumping station with an integral valve vault (2017-03-07),

14. 9567739 - Floor drain assembly system and method of forming the same (2017-02-14),

15. 9546044 - Method and apparatus for capturing, storing, and distributing storm water (2017-01-17),

Oldcastle Precast, Inc. is a leading provider of precast concrete solutions, specializing in a diverse range of products that cater to various infrastructure needs. The company focuses on innovative technologies in precast concrete, including grease interceptors, utility vaults, stormwater treatment systems, and bioretention systems. With a commitment to quality and sustainability, Oldcastle Precast serves a wide array of markets, delivering modular filtration and locking subgrade vault solutions that enhance environmental performance and operational efficiency.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

57 Patents

#1 in Auburn, WA

#132 in Washington

#6,244 in US

#12,552 in the World

Auburn, WA, United States of America

Oldcastle Precast, Inc.

Forward Citations = 632

54 inventors:

Nguyen Thai Dang (8 out of 12 patents)

Eric C Freeman (8 out of 13 patents)

Harold G Messenger (6 out of 6 patents)

4. Douglas Paul Allard (5 out of 22 patents)

5. Ken Pasco (5 out of 5 patents)

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