NWPX Infrastructure, Inc. (NWPX)
Nasdaq: NWPX · Steel Pipe & Tubes · Vancouver, WA · filing with the SEC since 1996
Grade5.6
◀ Past 5.6● Present 6.3▶ Future 4.6
Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 202610 patents granted to the 5 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to NWPX Infrastructure, Inc.’s names, not what it holds today.
Patents granted
10
9 utility, 1 reissue, 1976 to Dec 31, 2025
Granted in 2025
2
Against none in 2024 and 1 in 2023
Applications published
9
3 of them in 2025
Names they are printed under
5
a former name, a subsidiary
By yearGrantedApplications published
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Civil engineering2
Environmental technology1
Mechanical elements1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name5 counted
Northwest Pipe Company a former name
US, as the owner printed on each patent
7 published
GENEVA PIPE AND PRECAST COMPANY a subsidiary
US, as the owner printed on each patent
0 published
GENEVA PIPE AND PRECAST COMPANY a subsidiary
named as the applicant on its applications, in US
1 published
PARK ENVIRONMENTAL EQUIPMENT, LLC a subsidiary
US, as the owner printed on each patent
0 published
PARK ENVIRONMENTAL EQUIPMENT, LLC a subsidiary
named as the applicant on its applications, in US
1 published
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|---|---|---|---|
| Apr 8, 2025 | RE50,368 | Pipe joint | Northwest Pipe Company | |
| Feb 4, 2025 | 12,215,817 | Seismic pipe joint | Mechanical elements | Northwest Pipe Company |
| May 16, 2023 | 11,649,603 | Manhole rehabilitation system | Civil engineering | GENEVA PIPE AND PRECAST COMPANY |
| Dec 20, 2022 | 11,530,522 | Manhole assembly | Civil engineering | GENEVA PIPE AND PRECAST COMPANY |
| Oct 18, 2022 | 11,472,720 | Aqueous firefighting foam wastewater management system | Environmental technology | PARK ENVIRONMENTAL EQUIPMENT, LLC |
| Nov 3, 2020 | 10,823,320 | Pipe joint | Civil engineering | Northwest Pipe Company |
| Apr 14, 2020 | 10,619,778 | Pipe ram joint | Mechanical elements | Northwest Pipe Company |
| Jul 23, 2019 | 10,359,137 | Pipe seal and pipe joint | Mechanical elements | Northwest Pipe Company |
| Jun 14, 2011 | 7,959,411 | In-pipe hydro-electric power system and turbine | Engines, pumps, turbines | Northwest Pipe Company |
| Jul 23, 2002 | 6,422,783 | Breakaway post slipbase | Civil engineering | Northwest Pipe Company |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|---|---|---|---|
| Aug 14, 2025 | 2025/0257832 | COUPLING SYSTEM FOR ARTICULATING PIPE JOINT | Mechanical elements | Northwest Pipe Company |
| Apr 24, 2025 | 2025/0129879 | SEISMIC PIPE JOINT | Mechanical elements | Northwest Pipe Company |
| Jan 9, 2025 | 2025/0012104 | COMPOSITE PANEL AND SYSTEM AND METHOD UTILIZING THE COMPOSITE PANEL | Surface technology, coating | GENEVA PIPE AND PRECAST COMPANY |
| Dec 5, 2024 | 2024/0400432 | SLUDGE DEWATERING SYSTEM HAVING A FILTRATION PANEL WITH A DIMPLED CORE | Chemical engineering | PARK ENVIRONMENTAL EQUIPMENT, LLC |
| Feb 11, 2021 | 2021/0041053 | SEISMIC PIPE JOINT | Mechanical elements | Northwest Pipe Company · patent 12,215,817 granted from it |
| Nov 9, 2017 | 2017/0321834 | PIPE RAM JOINT | Mechanical elements | Northwest Pipe Company · patent 10,619,778 granted from it |
| Feb 9, 2012 | 2012/0031518 | NOVEL DESIGNS AND ASSEMBLY METHODS FOR CONDUIT USED IN HARNESSING HYDROKINETIC ENERGY | Engines, pumps, turbines | Northwest Pipe Company |
| Aug 25, 2011 | 2011/0204640 | IN-PIPE HYDRO-ELECTRIC POWER SYSTEM AND TURBINE | Engines, pumps, turbines | Northwest Pipe Company · patent 8,360,720 granted from it |
| Sep 5, 2002 | 2002/0122693 | BREAKAWAY POST SLIPBASE | Civil engineering | Northwest Pipe Company · patent 6,422,783 granted from it |
What it applied for, 2024 to 2025: Mechanical elements 2 · Chemical engineering 1 · Surface technology, coating 1.
A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.