F05D 2250/20
Three-dimensional
F05D2250/20 (Three-dimensional) appears on 2,204 US grants and 2,479 published applications in this corpus.
Search patents in F05D- Granted patents
- 2,204
- Published applications
- 2,479
- Assignees
- 434
- Inventors
- 4,810
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 12 | 0 |
| 1985 | 10 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 7 | 0 |
| 2000 | 11 | 0 |
| 2001 | 14 | 3 |
| 2002 | 21 | 20 |
| 2003 | 28 | 19 |
| 2004 | 24 | 39 |
| 2005 | 17 | 32 |
| 2006 | 28 | 53 |
| 2007 | 31 | 48 |
| 2008 | 20 | 58 |
| 2009 | 34 | 55 |
| 2010 | 33 | 75 |
| 2011 | 44 | 48 |
| 2012 | 67 | 66 |
| 2013 | 41 | 93 |
| 2014 | 51 | 77 |
| 2015 | 68 | 136 |
| 2016 | 75 | 205 |
| 2017 | 90 | 170 |
| 2018 | 134 | 180 |
| 2019 | 183 | 187 |
| 2020 | 202 | 201 |
| 2021 | 172 | 155 |
| 2022 | 183 | 148 |
| 2023 | 151 | 132 |
| 2024 | 149 | 115 |
| 2025 | 125 | 94 |
| 2026 | 60 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F05D 2250/23PrismaticIndexing code627
- F05D 2250/29MachinedIndexing code588
- F05D 2250/28PatternedIndexing code541
- F05D 2250/25HelicalIndexing code299
- F05D 2250/24EllipsoidalIndexing code244
- F05D 2250/22ParallelepipedalIndexing code53
- F05D 2250/21PyramidalIndexing code52
- F05D 2250/27HyperboloidIndexing code24
All 9 subgroupsShow fewer
Recent patents
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- Rotorcraft with powerplant exhaust sound attenuation25 Aug 2026US 12,715,576 B2Pratt & Whitney Canada Corp.
- Microturbine and method of operation25 Aug 2026US 12,716,363 B1Enerbine Corp
- Impeller pump and method24 Sep 2026US 2026/0286970 A1Pentair Flow Technologies, LLC
- Rotor stage containment structure for gas turbine engine17 Sep 2026US 2026/0275882 A1Pratt & Whitney Canada Corp.
- Improved variable-pitch stator and method for using such a stator3 Sep 2026US 2026/0258732 A1Safran
- Noise attenuation for nuclear imaging system27 Aug 2026US 2026/0251158 A1Siemens Medical Solutions USA, Inc.
- Turbine or compressor stage assembly13 Aug 2026US 2026/0235034 A1
Most cited
By later US patents
- Film cooling hole for turbine airfoil313US 7,997,868 B1Florida Turbine Technologies, Inc. · 2011
- Bellows sealed ball joint124US 5,286,071 AGeneral Electric Company · 1994
- Combination bulk absorber-honeycomb acoustic panels122US 4,235,303 AThe Boeing Company · 1980
- Spiral wound containment ring122US 5,163,809 APratt & Whitney Canada Corp. · 1992
- Second stage turbine bucket airfoil111US 6,832,897 B2General Electric Company · 2004