F01C 1/063
With coaxially-mounted members having continuously-changing circumferential spacing between them
Official title: with coaxially-mounted members having continuously-changing circumferential spacing between them
F01C1/063 (With coaxially-mounted members having continuously-changing circumferential spacing between them) appears on 253 US grants and 147 published applications in this corpus.
Search patents in F01C- Granted patents
- 253
- Published applications
- 147
- Assignees
- 54
- Inventors
- 292
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 11 | 0 |
| 1978 | 7 | 0 |
| 1979 | 9 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 1 |
| 2002 | 8 | 3 |
| 2003 | 1 | 3 |
| 2004 | 2 | 9 |
| 2005 | 4 | 5 |
| 2006 | 1 | 13 |
| 2007 | 4 | 9 |
| 2008 | 6 | 6 |
| 2009 | 4 | 4 |
| 2010 | 7 | 11 |
| 2011 | 3 | 9 |
| 2012 | 4 | 5 |
| 2013 | 6 | 7 |
| 2014 | 3 | 6 |
| 2015 | 8 | 6 |
| 2016 | 7 | 8 |
| 2017 | 5 | 6 |
| 2018 | 4 | 5 |
| 2019 | 9 | 7 |
| 2020 | 5 | 7 |
| 2021 | 5 | 3 |
| 2022 | 4 | 5 |
| 2023 | 4 | 0 |
| 2024 | 5 | 2 |
| 2025 | 5 | 5 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tangential internal combustion engine19 May 2026US 12,631,137 B2Fnf Innovation Sh.P.K.
- Bidirectional rotary hydraulic motor and pump13 Jan 2026US 12,523,153 B2
- Rotational engine with inner and outer rings7 Oct 2025US 12,435,632 B2Duplicent, LLC
- Three-cycle (stroke) rotary radial vane piston internal combustion engine23 Sep 2025US 12,421,852 B1
- Integrated internal continuous combustion rotary engine27 May 2025US 12,312,960 B1
- Rotational Engine With Inner and Outer Rings17 Sep 2026US 2026/0275867 A1Duplicent, LLC
- Tangential internal combustion engine26 Feb 2026US 2026/0055723 A1Fnf Innovation Sh.P.K.
- Full-hybrid rotary motor with fuel thermo units and generator drive23 Oct 2025US 2025/0330063 A1
- Rotational engine18 Sep 2025US 2025/0290419 A1Duplicent, LLC
- Internal combustion engine21 Aug 2025US 2025/0264023 A1
Most cited
By later US patents