F04C 29/0071
Couplings between rotors and input or output shafts acting by interengaging or
Official title: {Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft}
F04C29/0071 (Couplings between rotors and input or output shafts acting by interengaging or) appears on 99 US grants and 130 published applications in this corpus.
Search patents in F04C- Granted patents
- 99
- Published applications
- 130
- Assignees
- 74
- Inventors
- 313
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 3 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 3 |
| 2010 | 0 | 5 |
| 2011 | 1 | 4 |
| 2012 | 3 | 12 |
| 2013 | 3 | 3 |
| 2014 | 6 | 6 |
| 2015 | 6 | 10 |
| 2016 | 3 | 6 |
| 2017 | 7 | 10 |
| 2018 | 6 | 8 |
| 2019 | 7 | 15 |
| 2020 | 6 | 5 |
| 2021 | 9 | 7 |
| 2022 | 9 | 6 |
| 2023 | 7 | 6 |
| 2024 | 5 | 6 |
| 2025 | 11 | 7 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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By later US patents
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