C30B 15/305
Stirring of the melt
Official title: {Stirring of the melt}
C30B15/305 (Stirring of the melt) appears on 175 US grants and 164 published applications in this corpus.
Search patents in C30B- Granted patents
- 175
- Published applications
- 164
- Assignees
- 81
- Inventors
- 393
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 7 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 8 | 0 |
| 1999 | 13 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 2 |
| 2002 | 6 | 5 |
| 2003 | 9 | 4 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 4 |
| 2007 | 5 | 9 |
| 2008 | 4 | 5 |
| 2009 | 4 | 13 |
| 2010 | 4 | 9 |
| 2011 | 1 | 6 |
| 2012 | 6 | 4 |
| 2013 | 8 | 4 |
| 2014 | 3 | 1 |
| 2015 | 4 | 4 |
| 2016 | 1 | 3 |
| 2017 | 3 | 4 |
| 2018 | 5 | 7 |
| 2019 | 4 | 4 |
| 2020 | 7 | 11 |
| 2021 | 7 | 18 |
| 2022 | 4 | 10 |
| 2023 | 9 | 7 |
| 2024 | 9 | 15 |
| 2025 | 11 | 7 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for synthesizing and continuously growing phosphide in magnetic field in immersion fashion14 Apr 2026US 12,601,086 B2The 13th Research Institute of China Electronics Technology Group Corporation
- Methods of manufacturing semiconductor devices and semiconductor devices24 Mar 2026US 12,588,445 B2Semiconductor Components Industries, LLC
- Single crystal manufacturing method, magnetic field generator, and single crystal manufacturing apparatus9 Dec 2025US 12,492,489 B2Sumco Corporation
- Axial positioning of magnetic poles while producing a silicon ingot2 Dec 2025US 12,486,593 B2GlobalWafers Co., Ltd.
- Ingot puller apparatus that axially position magnetic poles2 Dec 2025US 12,486,594 B2GlobalWafers Co., Ltd.
- Silicon single crystal manufacturing method, and silicon single crystal manufacturing apparatus1 Oct 2026US 2026/0297810 A1Sumco Corporation
- Crystal production method, high-frequency heating device, and crystal producing apparatus30 Jul 2026US 2026/0218410 A1A. C. Company
- Process for manufacturing a silicon single crystal, and semiconductor wafer made of single-crystal silicon7 May 2026US 2026/0125820 A1Siltronic AG
- Crystal growing apparatus and rf-soi substrate26 Mar 2026US 2026/0085450 A1Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
- Superconducting magnet device5 Mar 2026US 2026/0066163 A1Sumitomo Heavy Industries, Ltd.
Most cited
By later US patents
- Device for generating a variable magnetic field52US 6,535,092 B1Magnetic Solutions (Holdings) Limited · 2003
- Method for controlling oxygen content of silicon crystals using a combination of cusp magnetic field and crystal and crucible rotation rates44US 5,178,720 AMEMC Electronic Materials, Inc. · 1993
- Single crystal pulling system26US 4,592,895 AKabushiki Kaisha Toshiba · 1986
- Single crystal growth apparatus25US 4,830,703 AKabushiki Kaisha Toshiba · 1989
- Cold crucible system and method for the meeting and crystallization of non-metallic inorganic compounds24US 4,609,425 AU. S. Philips Corporation · 1986