F05C 2251/00
Material properties
F05C2251/00 (Material properties) appears on 775 US grants and 672 published applications in this corpus.
Search patents in F05C- Granted patents
- 775
- Published applications
- 672
- Assignees
- 423
- Inventors
- 1,859
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 18 | 0 |
| 1986 | 5 | 0 |
| 1987 | 11 | 0 |
| 1988 | 14 | 0 |
| 1989 | 21 | 0 |
| 1990 | 16 | 0 |
| 1991 | 20 | 0 |
| 1992 | 12 | 0 |
| 1993 | 11 | 0 |
| 1994 | 11 | 0 |
| 1995 | 18 | 0 |
| 1996 | 14 | 0 |
| 1997 | 16 | 0 |
| 1998 | 18 | 0 |
| 1999 | 18 | 0 |
| 2000 | 22 | 0 |
| 2001 | 18 | 4 |
| 2002 | 19 | 20 |
| 2003 | 18 | 17 |
| 2004 | 14 | 25 |
| 2005 | 12 | 34 |
| 2006 | 13 | 23 |
| 2007 | 14 | 32 |
| 2008 | 15 | 29 |
| 2009 | 15 | 28 |
| 2010 | 23 | 44 |
| 2011 | 30 | 23 |
| 2012 | 11 | 24 |
| 2013 | 13 | 29 |
| 2014 | 16 | 31 |
| 2015 | 19 | 48 |
| 2016 | 22 | 29 |
| 2017 | 23 | 42 |
| 2018 | 33 | 38 |
| 2019 | 39 | 29 |
| 2020 | 27 | 24 |
| 2021 | 15 | 26 |
| 2022 | 24 | 23 |
| 2023 | 21 | 16 |
| 2024 | 15 | 15 |
| 2025 | 16 | 11 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F05C 2251/04Thermal propertiesIndexing code472
- F05C 2251/10HardnessIndexing code87
- F05C 2251/08Shape memoryIndexing code85
- F05C 2251/14Self lubricating materialsIndexing code80
- F05C 2251/02ElasticityIndexing code52
- F05C 2251/12Magnetic propertiesIndexing code17
- F05C 2251/06Reflective propertiesIndexing code10
Recent patents
- Systems and methods for a remote control actuator6 Oct 2026US 12,753,743 B2Trustees of Tufts College
- Method for producing a water-hydraulic machine24 Mar 2026US 12,584,470 B2Danfoss A/S
- Coating layer having a conforming material for a compressor and method of using the same17 Mar 2026US 12,577,950 B2Trane International Inc.
- Screw pump and its components24 Feb 2026US 12,560,167 B2Illinois Tool Works Inc.
- Internal combustion engine25 Nov 2025US 12,480,457 B2
- Vacuum pump17 Sep 2026US 2026/0275984 A1
- Pump stator tie-layer with surface roughness20 Aug 2026US 2026/0243253 A1Schlumberger Technology Corporation
- Stator with non-uniform thickness for one-to-two lobe ratio pumps6 Aug 2026US 2026/0226894 A1Schlumberger Technology Corporation
- Screw Pump and its Components14 May 2026US 2026/0132787 A1Illinois Tool Works Inc.
- Stator lining, stator and method for producing a stator lining30 Apr 2026US 2026/0121461 A1
Most cited
By later US patents
- Device and method employing shape memory alloy491US 6,916,159 B2TheraSense, Inc. · 2005
- Shape memory alloy wire driven positive displacement micropump with pulsatile output304US 7,052,251 B2Medtronic MiniMed, Inc. · 2006
- Cardiac assist device256US 5,941,813 ACardiotools Herzchirurgietechnik Gmbh · 1999
- Shape memory alloy wire driven positive displacement micropump with pulsatile output127US 7,226,278 B2Medtronic MiniMed, Inc. · 2007
- Wear resistant pump valve107US 4,518,329 A1985