C30B 15/32
Seed holders
Official title: Seed holders, e.g. chucks
C30B15/32 (Seed holders) appears on 72 US grants and 56 published applications in this corpus.
Search patents in C30B- Granted patents
- 72
- Published applications
- 56
- Assignees
- 50
- Inventors
- 162
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 3 |
| 2014 | 1 | 3 |
| 2015 | 3 | 6 |
| 2016 | 4 | 1 |
| 2017 | 7 | 3 |
| 2018 | 2 | 5 |
| 2019 | 5 | 4 |
| 2020 | 3 | 3 |
| 2021 | 4 | 1 |
| 2022 | 2 | 3 |
| 2023 | 0 | 1 |
| 2024 | 1 | 2 |
| 2025 | 3 | 5 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cylindrical silicon ingot manufacturing method23 Sep 2025US 12,421,623 B2BCnC Co., Ltd.
- Manufacture and repair of high temperature reinforced superconductors13 May 2025US 12,297,558 B2LAU Superconductors Inc.
- Crystal support and crystal growing plant having such a crystal support15 Apr 2025US 12,276,042 B2PVA TePla AG
- Spool-balanced seed lift6 Feb 2024US 11,891,721 B2Linton Kayex Technology Co., Ltd
- Seed crystal holder for pulling up single crystal and method of manufacturing silicon single crystal using the same28 Jun 2022US 11,371,160 B2Sumco Corporation
- Digallium trioxide single-crystal substrate, method of manufacturing digallium trioxide single crystal, and method of manufacturing digallium trioxide single-crystal substrate24 Sep 2026US 2026/0286570 A1Sumitomo Electric Industries, Ltd.
- Cylindrical silicon ingot manufacturing method26 Feb 2026US 2026/0055533 A1BCnC Co., Ltd.
- Ingot puller apparatus including in-situ cable cleaner29 Jan 2026US 2026/0027595 A1
- Seed crystal holders and crystal growth methods26 Jun 2025US 2025/0207295 A1Meishan Boya Advanced Materials Co., Ltd.
- Thermal chimney for crystal growth5 Jun 2025US 2025/0179683 A1
Most cited
By later US patents
- Apparatus for pulling single crystals from melt16US 4,190,630 AVsesojuzny Nauchno-Isslekovatelsky Institut Monokristallov Stsintillyatsionnykh Materialov I Osobo Chistykh Khimicheskikh Veschestv · 1980
- Method and apparatus for growing crystals14US 4,594,127 AGeneral Signal Corporation · 1986
- Crystal holder14US 4,738,832 ALeybold-Heraeus GmbH · 1988
- Method and apparatus for securely supporting a growing crystal in a czochralski crystal growth system14US 5,932,007 AGeneral Signal Technology Corporation · 1999
- Seed crystal holder9US 5,948,164 AShin-Etsu Handotai Co., Ltd. · 1999