Zurn Elkay Water Solutions Corporation (ZWS)
NYSE: ZWS · General Industrial Machinery & Equipment · Milwaukee, WI · filing with the SEC since 2008
Grade6.6
◀ Past 5.2● Present 7.3▶ Future 6.9
Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026377 patents granted to the 10 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 Zurn Elkay Water Solutions Corporation’s names, not what it holds today.
Patents granted
377
346 utility, 30 design, 1 reissue, 1976 to Dec 31, 2025
Granted in 2025
12
Against 6 in 2024 and none in 2023
Applications published
39
10 of them in 2025
Names they are printed under
10
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 engineering8
Measurement1
Chemical engineering1
Mechanical elements1
IT methods for management1
Other special machines1
Digital communication1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name10 counted
REXNORD GMBH a former name
US, as the owner printed on each patent. 1 more under the same name are not counted (printed in DE)
1 published
American Dryer, Inc. a subsidiary
US, as the owner printed on each patent
12 published
ZURN WATER, LLC a subsidiary
US, as the owner printed on each patent
0 published
Zurn Water, LLC a subsidiary
named as the applicant on its applications, in US
18 published
Zurn Pex, Inc. a subsidiary
US, as the owner printed on each patent
3 published
WORLD DRYER CORPORATION a subsidiary
US, as the owner printed on each patent
1 published
AMERICAN DRYER, INC. a subsidiary
named as the applicant on its applications, in US
2 published
Green Turtle Americas Ltd. a subsidiary
US, as the owner printed on each patent
0 published
Just Manufacturing a subsidiary
US, as the owner printed on each patent
1 published
World Dryer Corporation a subsidiary
named as the applicant on its applications, in US
1 published
Names not counted (3)
Zurn Industries Limited
Most of its patents print US; this name counts in CA. 231 granted and 43 published under it are not counted.
Zurn Industries Limited
Most of its patents print US; this name counts in CA. 0 granted and 105 published under it are not counted.
Rexnord Corp
Most of its patents print DE; this name counts in US. 0 granted and 1 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|---|---|---|---|
| Sep 2, 2025 | 12,404,683 | Elevator trench drain | Civil engineering | ZURN WATER, LLC |
| Jul 22, 2025 | 12,366,063 | Cover assembly and methods | Civil engineering | ZURN WATER, LLC |
| Jul 8, 2025 | 12,352,030 | Wall-mounted water closet carrier assembly | Civil engineering | ZURN WATER, LLC |
| Jun 3, 2025 | 12,320,112 | Modular drain assembly for pod constructed room | Civil engineering | ZURN WATER, LLC |
| May 13, 2025 | 12,301,661 | Water management system and user interface | Digital communication | ZURN WATER, LLC |
| May 6, 2025 | 12,290,969 | Injection molded cold-expansion compression collar | Other special machines | ZURN WATER, LLC |
| Apr 8, 2025 | D1,070,027 | Drain grate | ZURN WATER, LLC | |
| Apr 8, 2025 | D1,070,026 | Drain grate | ZURN WATER, LLC | |
| Apr 8, 2025 | D1,070,025 | Drain grate | ZURN WATER, LLC | |
| Apr 8, 2025 | D1,070,024 | Drain grate | ZURN WATER, LLC |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|---|---|---|---|
| Nov 13, 2025 | 2025/0347100 | COVER ASSEMBLY AND METHODS | Civil engineering | Zurn Water, LLC |
| Sep 4, 2025 | 2025/0276486 | CONSTANT STRAIN PEX EXPANSION TOOL HEAD | Other special machines | Zurn Water, LLC |
| Jun 12, 2025 | 2025/0188726 | WATER CLOSET CARRIER | Civil engineering | Zurn Water, LLC |
| May 22, 2025 | 2025/0164021 | CHECK VALVE FOR BACKFLOW PREVENTER | Mechanical elements | Zurn Water, LLC |
| May 22, 2025 | 2025/0164009 | GASKET FOR PLUMBING ASSEMBLY | Mechanical elements | Zurn Water, LLC |
| May 15, 2025 | 2025/0155038 | CHECK VALVE HAVING PIVOTING LINK | Mechanical elements | Zurn Water, LLC |
| Mar 20, 2025 | 2025/0097297 | WATER MANAGEMENT SYSTEM FOR ANOMALY DETECTION | Digital communication | Zurn Water, LLC |
| Mar 6, 2025 | 2025/0075814 | CHECK VALVE ASSEMBLY | Mechanical elements | Zurn Water, LLC |
| Feb 6, 2025 | 2025/0047746 | WATER MANAGEMENT SYSTEM FOR DETERMINING PREVENTATIVE MAINTENANCE NEEDS | Digital communication | Zurn Water, LLC |
| Feb 6, 2025 | 2025/0047745 | WATER MANAGEMENT SYSTEM FOR DETERMINING FIXTURE REPAIR NEEDS | Digital communication | Zurn Water, LLC |
What it applied for, 2024 to 2025: Civil engineering 7 · Mechanical elements 5 · Digital communication 4 · Machine tools 1 · Other special machines 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.