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For the Inventor, By the Inventor

Auburn, WA, United States of America

Oldcastle Precast, Inc.

Calculating rank
USPTO Granted Patents = 57

% Expired Patents = 10.5


Trademarks = 21

Forward Citations = 641

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54 inventors (with patents filed for the assignee):

goldMedal Nguyen Thai Dang (8 out of 12 patents)

silverMedal Eric C Freeman (8 out of 13 patents)

bronzeMedal 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:

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),
Company Overview
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 synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

57 Patents

#1 in Auburn, WA

#132 in Washington

#6,254 in US

#12,581 in the World

Auburn, WA (US)
Auburn, WA, United States of America

Oldcastle Precast, Inc.

Forward Citations = 641

54 inventors:

goldMedal Nguyen Thai Dang (8 out of 12 patents)

silverMedal Eric C Freeman (8 out of 13 patents)

bronzeMedal 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Oldcastle Precast, Inc.. Retrieved from https://idiyas.com/company/oldcastle-precast

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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