F04C 18/0207
Both members having co-operating elements in spiral form
Official title: {both members having co-operating elements in spiral form}
F04C18/0207 (Both members having co-operating elements in spiral form) appears on 2,987 US grants and 2,967 published applications in this corpus.
Search patents in F04C- Granted patents
- 2,987
- Published applications
- 2,967
- Assignees
- 375
- Inventors
- 3,542
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 13 | 0 |
| 1985 | 12 | 0 |
| 1986 | 2 | 0 |
| 1987 | 14 | 0 |
| 1988 | 15 | 0 |
| 1989 | 23 | 0 |
| 1990 | 19 | 0 |
| 1991 | 27 | 0 |
| 1992 | 31 | 0 |
| 1993 | 32 | 0 |
| 1994 | 43 | 0 |
| 1995 | 40 | 0 |
| 1996 | 52 | 0 |
| 1997 | 38 | 0 |
| 1998 | 52 | 0 |
| 1999 | 24 | 0 |
| 2000 | 74 | 0 |
| 2001 | 86 | 25 |
| 2002 | 86 | 84 |
| 2003 | 68 | 83 |
| 2004 | 71 | 82 |
| 2005 | 43 | 85 |
| 2006 | 58 | 99 |
| 2007 | 69 | 78 |
| 2008 | 57 | 71 |
| 2009 | 38 | 115 |
| 2010 | 57 | 130 |
| 2011 | 74 | 115 |
| 2012 | 98 | 86 |
| 2013 | 77 | 129 |
| 2014 | 76 | 134 |
| 2015 | 101 | 137 |
| 2016 | 111 | 142 |
| 2017 | 110 | 124 |
| 2018 | 117 | 135 |
| 2019 | 123 | 152 |
| 2020 | 121 | 176 |
| 2021 | 160 | 117 |
| 2022 | 146 | 145 |
| 2023 | 118 | 141 |
| 2024 | 201 | 121 |
| 2025 | 127 | 131 |
| 2026 | 72 | 130 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Scroll-type electric compressor6 Oct 2026US 12,753,761 B2Sanden Corporation
- Electric compressor6 Oct 2026US 12,753,764 B2Kabushiki Kaisha Toyota Jidoshokki
- Electric compressor with integrated vapor injection circuit29 Sep 2026US 12,747,729 B2Mahle International GmbH
- Vertical type compressor and laundry treating apparatus having the same22 Sep 2026US 12,742,456 B2LG Electronics Inc.
- Scroll compressor15 Sep 2026US 12,736,050 B2Kabushiki Kaisha Toyota Jidoshokki
- Scroll compressor with a sealing ring for a fixed disk check valve8 Oct 2026US 2026/0309151 A1Hitachi-Johnson Controls Air Conditioning, Inc.
- Scroll machine and refrigeration system1 Oct 2026US 2026/0298231 A1Bitzer Kuhlmaschinenbau GmbH
- Scroll compressor1 Oct 2026US 2026/0298232 A1BITZER Refrigeration Technology (China) Co., Ltd.
- Compressor1 Oct 2026US 2026/0298233 A1Samsung Electronics Co., Ltd.
- Scroll compressor1 Oct 2026US 2026/0298234 A1Ishikawa Energy Research Co., Ltd.
Most cited
By later US patents
- Scroll-type machine with axially compliant mounting226US 4,877,382 ACopeland Corporation · 1989
- Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor194US 6,047,557 ACopeland Corporation · 2000
- Compressor pulse width modulation172US 6,213,731 B1Copeland Corporation · 2001
- Compressor diagnostic system172US 6,615,594 B2Copeland Corporation · 2003
- Surgical evacuation system with a communication circuit for communication between a filter and a smoke evacuation device165US 10,898,622 B2Ethicon, Inc. · 2021