F04C 18/0246
Details concerning the involute wraps or their base
Official title: {Details concerning the involute wraps or their base, e.g. geometry}
F04C18/0246 (Details concerning the involute wraps or their base) appears on 944 US grants and 895 published applications in this corpus.
Search patents in F04C- Granted patents
- 944
- Published applications
- 895
- Assignees
- 176
- Inventors
- 1,417
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 11 | 0 |
| 1993 | 5 | 0 |
| 1994 | 13 | 0 |
| 1995 | 20 | 0 |
| 1996 | 18 | 0 |
| 1997 | 14 | 0 |
| 1998 | 26 | 0 |
| 1999 | 10 | 0 |
| 2000 | 20 | 0 |
| 2001 | 17 | 5 |
| 2002 | 18 | 23 |
| 2003 | 17 | 17 |
| 2004 | 20 | 11 |
| 2005 | 9 | 19 |
| 2006 | 7 | 18 |
| 2007 | 13 | 10 |
| 2008 | 13 | 11 |
| 2009 | 5 | 14 |
| 2010 | 9 | 43 |
| 2011 | 13 | 32 |
| 2012 | 23 | 28 |
| 2013 | 26 | 49 |
| 2014 | 18 | 40 |
| 2015 | 46 | 39 |
| 2016 | 40 | 52 |
| 2017 | 35 | 43 |
| 2018 | 44 | 58 |
| 2019 | 38 | 54 |
| 2020 | 53 | 64 |
| 2021 | 69 | 36 |
| 2022 | 59 | 53 |
| 2023 | 47 | 63 |
| 2024 | 76 | 43 |
| 2025 | 38 | 30 |
| 2026 | 17 | 40 |
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
- Scroll compressor15 Sep 2026US 12,736,052 B2Kabushiki Kaisha Toyota Jidoshokki
- Vortex compressor8 Sep 2026US 12,729,684 B2Robert Bosch GmbH
- 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
- Scroll vacuum pump and scroll vacuum pump system1 Oct 2026US 2026/0298241 A1Pfeiffer Vacuum Technology AG
- 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
- Compressor including end cap having internal features and methods of assembling the same13 Aug 2026US 2026/0235124 A1
Most cited
By later US patents
- Scroll-type machine with axially compliant mounting226US 4,877,382 ACopeland Corporation · 1989
- Scroll-type machine with axially compliant mounting122US 4,767,293 ACopeland Corporation · 1988
- Non-orbiting scroll mounting arrangements for a scroll machine115US 5,102,316 ACopeland Corporation · 1992
- Scroll machine with ported orbiting scroll member80US 6,350,111 B1Copeland Corporation · 2002
- Scroll apparatus with reduced inlet pressure drop71US 5,314,316 AArthur D. Little, Inc. · 1994