F04C 18/0269
Details concerning the involute wraps
Official title: {Details concerning the involute wraps}
F04C18/0269 (Details concerning the involute wraps) appears on 394 US grants and 367 published applications in this corpus.
Search patents in F04C- Granted patents
- 394
- Published applications
- 367
- Assignees
- 115
- Inventors
- 764
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 10 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 4 |
| 2002 | 9 | 17 |
| 2003 | 11 | 7 |
| 2004 | 13 | 6 |
| 2005 | 6 | 7 |
| 2006 | 2 | 11 |
| 2007 | 7 | 7 |
| 2008 | 7 | 4 |
| 2009 | 3 | 7 |
| 2010 | 5 | 16 |
| 2011 | 5 | 8 |
| 2012 | 11 | 12 |
| 2013 | 7 | 19 |
| 2014 | 6 | 12 |
| 2015 | 12 | 17 |
| 2016 | 17 | 26 |
| 2017 | 17 | 23 |
| 2018 | 21 | 26 |
| 2019 | 19 | 28 |
| 2020 | 26 | 26 |
| 2021 | 30 | 14 |
| 2022 | 25 | 18 |
| 2023 | 16 | 15 |
| 2024 | 18 | 16 |
| 2025 | 12 | 7 |
| 2026 | 7 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Scroll device with tip seals and backup seals25 Aug 2026US 12,716,415 B2Air Squared, Inc.
- Scroll compressor11 Aug 2026US 12,704,126 B2Sanden Corporation
- Co-rotating scroll compressor with inverter mounted to reduce noise9 Jun 2026US 12,650,127 B2Kabushiki Kaisha Toyota Jidoshokki
- Co-rotating scroll compressor21 Apr 2026US 12,607,186 B2Kabushiki Kaisha Toyota Jidoshokki
- Compressor3 Mar 2026US 12,565,880 B2Hitachi Industrial Equipment Systems Co., Ltd.
- Scroll fluid machine with elastic member27 Aug 2026US 2026/0251140 A1Anest Iwata Corporation
- Co-rotating scroll compressor27 Aug 2026US 2026/0251142 A1Kabushiki Kaisha Toyota Jioshokki
- Co-rotating scroll compressor20 Aug 2026US 2026/0243256 A1Kabushiki Kaisha Toyota Jidoshokki
- Scroll compressor30 Jul 2026US 2026/0218704 A1
- Scroll compressor16 Jul 2026US 2026/0201882 A1Hanon Systems
Most cited
By later US patents
- Scroll compressor with bypass holes communicating with an intake chamber65US 7,344,365 B2Mitsubishi Heavy Industries, Ltd. · 2008
- Scroll type compressor with wrap portions of different axial heights60US 4,477,238 ASanden Corporation · 1984
- Scroll compressor59US 6,102,671 AMatsushita Electric Industrial Co., Ltd. · 2000
- Multi-stage scroll compressor57US 6,050,792 AAir Squared, Inc. · 2000
- Scroll type fluid machine57US 6,881,046 B2Daikin Industries, Ltd. · 2005