C30B 15/28
Using weight changes of the crystal or the melt
Official title: using weight changes of the crystal or the melt, e.g. flotation methods
C30B15/28 (Using weight changes of the crystal or the melt) appears on 38 US grants and 25 published applications in this corpus.
Search patents in C30B- Granted patents
- 38
- Published applications
- 25
- Assignees
- 36
- Inventors
- 109
- Latest grant
- 7 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 5 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 2 | 0 |
| 2014 | 1 | 1 |
| 2015 | 3 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 3 |
| 2018 | 2 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 3 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and systems for controlling crystal growth7 Jan 2025US 12,188,146 B2Meishan Boya Advanced Materials Co., Ltd.
- Spool-balanced seed lift6 Feb 2024US 11,891,721 B2Linton Kayex Technology Co., Ltd
- Wavelength conversion device6 Sep 2022US 11,437,773 B2Panasonic Intellectual Property Management Co., Ltd.
- Monocrystal growth system and method capable of controlling shape of ingot interface26 Feb 2019US 10,214,834 B2SK Siltron Co., Ltd.
- Method of growing germanium crystals13 Nov 2018US 10,125,431 B2South Dakota Board of Regents
- Liquid material feeding device, single crystal furnace, and material feeding method and pulling method thereof2 Oct 2025US 2025/0305179 A1Longi Green Energy Technology Co., Ltd.
- Methods and systems for controlling crystal growth24 Apr 2025US 2025/0129507 A1Meishan Boya Advanced Materials Co., Ltd.
- Continuous ingot growth apparatus and control method thereof16 Nov 2023US 2023/0366123 A1Hanwha Corporation
- Ingot growth apparatus and control method thereof19 Oct 2023US 2023/0332326 A1Hanwha Corporation
- Methods and systems for controlling crystal growth14 Jul 2022US 2022/0220630 A1Meishan Boya Advanced Materials Co., Ltd.
Most cited
By later US patents
- Method and apparatus for controlling diameter in Czochralski crystal growth by measuring crystal weight and crystal-melt interface temperature23US 4,565,598 AThe Commonwealth of Australia · 1986
- Weighing cell apparatus for diameter control of a rotatable growing crystal19US 3,934,983 ANational Research Development Corporation · 1976
- Crystal ingot lifting load measuring device16US 4,916,955 AShin-Etsu Handotai Co., Ltd. · 1990
- Automatic control of crystal growth15US 4,258,003 ANational Research Development Corporation · 1981
- Method and apparatus for manufacturing single crystals14US 4,539,067 ATokyo Shibaura Denki Kabushiki Kaisha · 1985