Company Analysis

Twin Disc, Incorporated (TWIN)

Nasdaq: TWIN · General Industrial Machinery & Equipment · Racine, WI · filing with the SEC since 1994
Grade4.5
◀ Past 2.9● Present 5.5▶ Future 4.6

Patents

US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026

75 patents granted to the 3 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 Twin Disc, Incorporated’s names, not what it holds today.

Patents granted
75
75 utility, 1976 to Dec 31, 2025
Granted in 2025
2
Against 1 in 2024 and 3 in 2023
Applications published
37
since 2001, to Dec 31, 2025
Names they are printed under
3
its own name, a subsidiary
By yearGrantedApplications published
'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
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
Engines, pumps, turbines3
Mechanical elements2
Basic materials chemistry2
Transport1
Electrical machinery, apparatus, energy1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name3 counted
Twin Disc, Inc. its own name
US, as the owner printed on each patent
74 granted
17 published
Twin Disc, Inc. its own name
named as the applicant on its applications, in US
0 granted
19 published
VETH PROPULSION B.V. a subsidiary
NL, as the owner printed on each patent
1 granted
1 published
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Dec 9, 202512,491,392Water and electrical supply system for firefightingElectrical machinery, apparatus, energyTwin Disc, Inc.
Jun 10, 202512,325,301Hybrid industrial machine powertrainTransportTwin Disc, Inc.
Feb 6, 202411,891,884Electro-hydraulic high-pressure oilfield pumping systemEngines, pumps, turbinesTwin Disc, Inc.
Oct 24, 202311,795,799Compound electro-hydraulic frac pumping systemEngines, pumps, turbinesTwin Disc, Inc.
Oct 17, 202311,788,395Oilfield pressure pumping system with slow speed and high pressure fracturing fluid outputEngines, pumps, turbinesTwin Disc, Inc.
Sep 19, 202311,761,319Fracturing of a deep or wet well utilizing an air/fuel mixture and multiple stage restriction orifice assemblyBasic materials chemistryTwin Disc, Inc.
May 31, 202211,346,198Fracturing of a wet well utilizing an air/fuel mixtureBasic materials chemistryTwin Disc, Inc.
Nov 30, 202111,187,253Clutch stack wear sensor system for a power transmission deviceMechanical elementsTwin Disc, Inc.
Feb 9, 202110,914,327Clutch stack wear sensor system for a power transmission deviceMechanical elementsTwin Disc, Inc.
Dec 15, 202010,865,630Fracturing utilizing an air/fuel mixtureBasic materials chemistryTwin Disc, Inc.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Oct 24, 20242024/0351674Touch Screen Marine Vessel Propulsion Control SystemTransportTwin Disc, Inc.
Oct 12, 20232023/0322075Hybrid Industrial Machine PowertrainTransportTwin Disc, Inc. · patent 12,325,301 granted from it
Jul 20, 20232023/0226395Water and Electrical Supply System for FirefightingElectrical machinery, apparatus, energyTwin Disc, Inc. · patent 12,491,392 granted from it
Dec 1, 20222022/0381125Compound Electro-Hydraulic Frac Pumping SystemEngines, pumps, turbinesTwin Disc, Inc. · patent 11,795,799 granted from it
Sep 15, 20222022/0290542Fracturing of a Deep or Wet Well Utilizing an Air/Fuel Mixture and Multiple Stage Restriction Orifice AssemblyBasic materials chemistryTwin Disc, Inc. · patent 11,761,319 granted from it
Aug 11, 20222022/0251936Electro-Hydraulic High-Pressure Oilfield Pumping SystemEngines, pumps, turbinesTwin Disc, Inc. · patent 11,891,884 granted from it
May 26, 20222022/0161212Electrically Driven Oilfield Blender SystemChemical engineeringTwin Disc, Inc.
Dec 23, 20212021/0396121Oilfield Pressure Pumping System With Slow Speed And High Pressure Fracturing Fluid OutputEngines, pumps, turbinesTwin Disc, Inc. · patent 11,788,395 granted from it
Sep 9, 20212021/0277759Fracturing of a Wet Well Utilizing an Air/Fuel MixtureBasic materials chemistryTwin Disc, Inc. · patent 11,346,198 granted from it
Aug 5, 20212021/0239142Clutch Stack Wear Sensor System for a Power Transmission DeviceMechanical elementsTwin Disc, Inc. · patent 11,187,253 granted from it
What it applied for, 2024 to 2025: Transport 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.

SI Assistanton TWIN · research, not advice