F01C 19/005
Structure and composition of sealing elements such as sealing strips, sealing rings
Official title: {Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements (vane construction F01C21/0809; piston rings and ring sealings of similar construction in general F16J9/00)}
F01C19/005 (Structure and composition of sealing elements such as sealing strips, sealing rings) appears on 185 US grants and 189 published applications in this corpus.
Search patents in F01C- Granted patents
- 185
- Published applications
- 189
- Assignees
- 136
- Inventors
- 436
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 3 | 3 |
| 2008 | 1 | 5 |
| 2009 | 3 | 7 |
| 2010 | 1 | 8 |
| 2011 | 4 | 7 |
| 2012 | 7 | 18 |
| 2013 | 11 | 18 |
| 2014 | 11 | 14 |
| 2015 | 10 | 15 |
| 2016 | 11 | 11 |
| 2017 | 13 | 8 |
| 2018 | 7 | 10 |
| 2019 | 10 | 9 |
| 2020 | 6 | 6 |
| 2021 | 8 | 7 |
| 2022 | 6 | 9 |
| 2023 | 7 | 14 |
| 2024 | 19 | 4 |
| 2025 | 8 | 9 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Scroll device with tip seals and backup seals25 Aug 2026US 12,716,415 B2Air Squared, Inc.
- Sealing gasket25 Aug 2026US 12,716,493 B2Edwards Limited
- Fretting resistant rotary engine housings18 Aug 2026US 12,709,983 B2Pratt & Whitney Canada Corp.
- Combined sealing piece, volumetric machine and wide fuel engine18 Nov 2025US 12,473,872 B2
- Dry-compression compressor and method for oil separation for a dry-compression compressor4 Nov 2025US 12,460,643 B2Kaeser Kompressoren SE
- Scroll fluid machine with elastic member27 Aug 2026US 2026/0251140 A1Anest Iwata Corporation
- Rotary Engine Housing16 Jul 2026US 2026/0201831 A1Pratt & Whitney Canada Corp.
- Scroll pump15 Jan 2026US 2026/0016007 A1Edwards Limited
- Seal assembly for progressive cavity pump4 Dec 2025US 2025/0369442 A1National Oilwell Varco, L. P.
- Sealing gasket4 Dec 2025US 2025/0369443 A1Edwards Limited
Most cited
By later US patents
- Metal material for sliding surfaces42US 3,932,228 ASuzuki Jidosha Kogyo Kabushiki Kaisha · 1976
- Rotary internal combustion engine34US 4,241,713 A1980
- Cycloid rotor engine32US 8,523,546 B2LiquidPiston, Inc. · 2013
- Magnetically actuated seal for scroll compressor27US 5,040,956 ACarrier Corporation · 1991
- Method of applying a refractory coating to metal substrate24US 4,024,617 ARamsey Corporation · 1977