B22F 2201/20
Use of vacuum
B22F2201/20 (Use of vacuum) appears on 208 US grants and 305 published applications in this corpus.
Search patents in B22F- Granted patents
- 208
- Published applications
- 305
- Assignees
- 236
- Inventors
- 903
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 0 | 4 |
| 2014 | 0 | 4 |
| 2015 | 3 | 7 |
| 2016 | 1 | 22 |
| 2017 | 9 | 27 |
| 2018 | 7 | 29 |
| 2019 | 12 | 24 |
| 2020 | 18 | 22 |
| 2021 | 23 | 24 |
| 2022 | 18 | 22 |
| 2023 | 17 | 29 |
| 2024 | 24 | 52 |
| 2025 | 20 | 22 |
| 2026 | 12 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing tantalum powder for capacitors by reducing tantalum oxide with alkaline earth metal15 Sep 2026US 12,734,580 B2Ningxia Orient Tantalum Industry Co., Ltd.
- Cutting tool8 Sep 2026US 12,728,456 B2Seco Tools AB
- Method and apparatus for additive manufacturing of a workpiece4 Aug 2026US 12,697,660 B2Pro-Beam AG & Co. KGAA
- R-T-B based permanent magnet7 Jul 2026US 12,676,255 B2TDK Corporation
- Wave-absorbing heat-generating coating for melting ice on wind turbine blade, and preparation method therefor16 Jun 2026US 12,655,308 B2Xi'an Thermal Power Research Institute Co., Ltd.
- 3d printed high carbon content steel and method of preparing the same24 Sep 2026US 2026/0286475 A1VBN Components AB
- Production method of three-dimensional object6 Aug 2026US 2026/0225158 A1Ricoh Company, Ltd.
- Sintering furnace23 Jul 2026US 2026/0210633 A1Seco Tools AB
- Sintered neodymium-iron-boron magnet with high corrosion resistance and high magnetic performance, and preparation method therefor4 Jun 2026US 2026/0155283 A1Nantong Zhenghai Magnet Co., Ltd.
- Method For Manufacturing Three-Dimensional Object, Three-Dimensional Object, Titanium-Containing Intermediate Three-Dimensional Object, And Titanium-Containing Three-Dimensional Object14 May 2026US 2026/0131381 A1Nippon Piston Ring Co., Ltd.
Most cited
By later US patents
- Method and apparatus for increasing the resolution in additively manufactured three-dimensional articles136US 9,079,248 B2Arcam AB · 2015
- Manufacture of a metal bonded abrasive product47US 5,932,508 A1999
- Apparatus and method for feeding powdered materials44US 4,813,818 A1989
- Sintered bodies and production process thereof25US 4,964,907 AKawasaki Steel Corporation · 1990
- Cemented carbide with binder phase enriched surface zone25US 5,451,469 ASandvik AB · 1995