F03B 9/00
Endless-chain machines or engines
F03B9/00 (Endless-chain machines or engines) appears on 18 US grants and 25 published applications in this corpus.
Search patents in F03B- Granted patents
- 18
- Published applications
- 25
- Assignees
- 4
- Inventors
- 20
- Latest grant
- 17 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 2 |
| 2016 | 3 | 3 |
| 2017 | 3 | 0 |
| 2018 | 0 | 3 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 4 | 4 |
| 2024 | 2 | 1 |
| 2025 | 0 | 3 |
By publication year.
Subgroups
Granted patents
Recent patents
- Hydraulic pressure power battery17 Sep 2024US 12,092,210 B2
- Subterranean energy storage system9 Jul 2024US 12,030,732 B2Economical Energy Pty Ltd
- Vertical water pumping system25 Apr 2023US 11,635,054 B1
- Electric generating precipitation collection system25 Apr 2023US 11,635,056 B2
- Hydroelectric power generation system18 Apr 2023US 11,629,688 B2
- Bicycle-Like Pressure-Differential Engine Apparatus9 Oct 2025US 2025/0314229 A1
- Portable hydro-generator29 May 2025US 2025/0172117 A1
- Pressure-Differential Engine Apparatus1 May 2025US 2025/0137432 A1
- Hydraulic pressure power battery19 Dec 2024US 2024/0418259 A1
- Pressure-Differential Engine Apparatus28 Dec 2023US 2023/0417216 A1
Most cited
By later US patents
- Linear Pelton turbine4US 10,221,830 B2Natel Energy, Inc. · 2019
- Method and apparatus for harnessing hydro-kinetic energy4US 8,624,417 B22014
- Systems, methods, and apparatus for an emergency power generator4US 9,452,721 B2The Boeing Company · 2016
- Alternative hydroelectric power plant4US 9,506,448 B22016
- Linear pelton turbine2US 10,167,844 B2Natel Energy, Inc. · 2019