Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
4 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 Montauk Renewables, Inc.’s names, not what it holds today.
Patents granted
4
4 utility, 1976 to Dec 31, 2025
Granted in 2025
1
Against 1 in 2024 and none in 2023
Applications published
5
1 of them in 2025
Names they are printed under
3
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
Basic materials chemistry4
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name3 counted
Montauk AG Renewables, LLC a subsidiary
US, as the owner printed on each patent
4 granted
3 publishedMONTAUK ENERGY HOLDINGS, LLC a subsidiary
US, as the owner printed on each patent
0 granted
1 publishedNR-3, LLC a subsidiary
US, as the owner printed on each patent
0 granted
1 published
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Sep 16, 2025 | 12,415,170 | Electric-powered, closed-loop, continuous-feed, endothermic energy-conversion systems and methods | Basic materials chemistry | Montauk AG Renewables, LLC |
| May 7, 2024 | 11,975,302 | Electric-powered, closed-loop, continuous-feed, endothermic energy-conversion systems and methods | Basic materials chemistry | Montauk AG Renewables, LLC |
| Dec 27, 2022 | 11,534,733 | Electric-powered, closed-loop, continuous-feed, endothermic energy-conversion systems and methods | Basic materials chemistry | Montauk AG Renewables, LLC |
| Aug 24, 2021 | 11,097,245 | Electric-powered, closed-loop, continuous-feed, endothermic energy conversion systems and methods | Basic materials chemistry | Montauk AG Renewables, LLC |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Jan 9, 2025 | 2025/0010262 | ELECTRIC-POWERED, CLOSED-LOOP, CONTINUOUS-FEED, ENDOTHERMIC ENERGY-CONVERSION SYSTEMS AND METHODS | Basic materials chemistry | Montauk AG Renewables, LLC · patent 12,415,170 granted from it |
| Jan 4, 2024 | 2024/0001297 | METHODS AND SYSTEMS FOR CONTROLLING CONDENSATE WHEN REDUCING OXYGEN CONTENT IN BIOGAS | Environmental technology | MONTAUK ENERGY HOLDINGS, LLC |
| May 4, 2023 | 2023/0134703 | ELECTRIC-POWERED, CLOSED-LOOP, CONTINUOUS-FEED, ENDOTHERMIC ENERGY-CONVERSION SYSTEMS AND METHODS | Basic materials chemistry | Montauk AG Renewables, LLC · patent 11,975,302 granted from it |
| Dec 9, 2021 | 2021/0379551 | ELECTRIC-POWERED, CLOSED-LOOP, CONTINUOUS-FEED, ENDOTHERMIC ENERGY-CONVERSION SYSTEMS AND METHODS | Basic materials chemistry | Montauk AG Renewables, LLC · patent 11,534,733 granted from it |
| May 13, 2021 | 2021/0138424 | ELECTRIC-POWERED, CLOSED-LOOP, CONTINUOUS-FEED, ENDOTHERMIC ENERGY CONVERSION SYSTEMS AND METHODS | Basic materials chemistry | NR-3, LLC · patent 11,097,245 granted from it |
What it applied for, 2024 to 2025: Environmental technology 1 · Basic materials chemistry 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.