B29L 2031/20
Fuel-blocks
Official title: Fuel-blocks, e.g. nuclear fuel elements
B29L2031/20 (Fuel-blocks) appears on 14 US grants and 11 published applications in this corpus.
Search patents in B29L- Granted patents
- 14
- Published applications
- 11
- Assignees
- 7
- Inventors
- 30
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 2 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 4 | 1 |
| 2025 | 4 | 1 |
| 2026 | 0 | 3 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Printing of energetic materials30 Sep 2025US 12,428,357 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Methods for rocket fuel grain coating and unitary manufacture23 Sep 2025US 12,420,339 B1X-Bow Launch Systems Inc.
- Continuous modification in a 3D-printed rocket engine and an additive manufacturing process26 Aug 2025US 12,398,685 B1X-Bow Launch Systems Inc.
- Modulating internal ballistics in a 3D-printed rocket motor and an additive manufacturing process18 Mar 2025US 12,253,051 B2X-Bow Launch Systems Inc.
- 3D-printed rocket fuel grains, rocket engines and an additive manufacturing process15 Oct 2024US 12,116,957 B1X-Bow Launch Systems Inc.
- Modulating internal ballistics in a 3d-printed rocket motor and an additive manufacturing process8 Oct 2026US 2026/0309106 A1X-Bow Launch Systems Inc.
- Print head for oxidizer-doped fuel grain10 Sep 2026US 2026/0264328 A1Vaya Space, Inc.
- 3d-printed rocket fuel grains, rocket engines and an additive manufacturing process30 Apr 2026US 2026/0117725 A1X-Bow Launch Systems Inc.
- Additively manufactured solid propellant material for rocket engines10 Jul 2025US 2025/0223935 A1
- Modulating internal ballistics in a 3d-printed rocket motor and an additive manufacturing process11 Apr 2024US 2024/0117782 A1X-Bow Launch Systems Inc.
Most cited
By later US patents
- Additive manufactured thermoplastic-nanocomposite aluminum hybrid rocket fuel grain and method of manufacturing same18US 10,286,599 B22019
- Modulating internal ballistics in a 3D-printed rocket motor and an additive manufacturing process3US 11,852,101 B1X-Bow Launch Systems Inc. · 2023
- Additively manufactured rocket fuel grains and competitive simulation of the same1US 11,913,410 B1X-Bow Launch Systems Inc. · 2024
- Modulating internal ballistics in a 3D-printed rocket motor and an additive manufacturing process1US 12,253,051 B2X-Bow Launch Systems Inc. · 2025
- Continuous modification in a 3D-printed rocket engine and an additive manufacturing process1US 12,398,685 B1X-Bow Launch Systems Inc. · 2025