B22F 12/52
Hoppers
B22F12/52 (Hoppers) appears on 364 US grants and 576 published applications in this corpus.
Search patents in B22F- Granted patents
- 364
- Published applications
- 576
- Assignees
- 155
- Inventors
- 924
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 3 |
| 2007 | 1 | 0 |
| 2008 | 1 | 4 |
| 2009 | 2 | 2 |
| 2010 | 2 | 2 |
| 2011 | 1 | 3 |
| 2012 | 0 | 0 |
| 2013 | 3 | 1 |
| 2014 | 0 | 11 |
| 2015 | 2 | 22 |
| 2016 | 11 | 32 |
| 2017 | 17 | 39 |
| 2018 | 15 | 51 |
| 2019 | 26 | 74 |
| 2020 | 41 | 66 |
| 2021 | 49 | 80 |
| 2022 | 59 | 57 |
| 2023 | 40 | 40 |
| 2024 | 30 | 28 |
| 2025 | 33 | 34 |
| 2026 | 15 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Powder container with socket connector for an additive manufacturing process18 Aug 2026US 12,708,944 B2Nikon SLM Solutions AG
- Docking arrangement for an additive manufacturing process28 Jul 2026US 12,691,499 B2LPW Technology Ltd
- Apparatus and method for producing an article by additive manufacturing14 Jul 2026US 12,679,034 B2LPW Technology Ltd
- Powder hopper for additive manufacturing system2 Jun 2026US 12,643,290 B2VulcanForms Inc.
- Powder spreading device, three-dimensional printing device, and three-dimensional printing system2 Jun 2026US 12,643,292 B2Kocel Intelligent Machinery Limited
- Actuator assemblies for additive manufacturing apparatuses and methods for using the same20 Aug 2026US 2026/0241638 A1General Electric Company
- Powder dispensing system for additive manufacturing13 Aug 2026US 2026/0233311 A1VulcanForms Inc.
- Method for dispensing powder from an intermediate reservoir of a powder-bed fusion apparatus and a corresponding apparatus30 Jul 2026US 2026/0216793 A1SLM Solutions Group AG
- Powder supply apparatus23 Jul 2026US 2026/0208444 A1
- Powder distribution device and 3d printing device including same16 Jul 2026US 2026/0200173 A1Samyoung Machinery Co., Ltd.
Most cited
By later US patents
- Method and apparatus for producing parts by selective sintering887US 4,863,538 ABoard of Regents, The University of Texas System · 1989
- Multiple material systems for selective beam sintering380US 4,944,817 ABoard of Regents, The University of Texas System · 1990
- Selective laser sintering with assisted powder handling352US 4,938,816 ABoard of Regents, The University of Texas System · 1990
- Multiple material systems for selective beam sintering335US 5,076,869 ABoard of Regents, The University of Texas System · 1991
- Forming structures from CAD solid models321US 6,811,744 B2Optomec Design Company · 2004