C03B 23/207
Uniting glass rods, glass tubes, or hollow glassware
Official title: Uniting glass rods, glass tubes, or hollow glassware (C03B23/24 takes precedence)
C03B23/207 (Uniting glass rods, glass tubes, or hollow glassware) appears on 160 US grants and 98 published applications in this corpus.
Search patents in C03B- Granted patents
- 160
- Published applications
- 98
- Assignees
- 105
- Inventors
- 348
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 11 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 2 | 0 |
| 1988 | 7 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 3 |
| 2002 | 3 | 3 |
| 2003 | 6 | 4 |
| 2004 | 0 | 5 |
| 2005 | 1 | 5 |
| 2006 | 2 | 4 |
| 2007 | 2 | 2 |
| 2008 | 2 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 4 |
| 2011 | 2 | 1 |
| 2012 | 1 | 2 |
| 2013 | 5 | 1 |
| 2014 | 0 | 4 |
| 2015 | 1 | 5 |
| 2016 | 2 | 2 |
| 2017 | 4 | 4 |
| 2018 | 2 | 4 |
| 2019 | 1 | 7 |
| 2020 | 1 | 8 |
| 2021 | 4 | 2 |
| 2022 | 4 | 4 |
| 2023 | 5 | 6 |
| 2024 | 3 | 7 |
| 2025 | 8 | 3 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for manufacturing microchannel plate28 Apr 2026US 12,612,327 B2
- Anti-resonance element preform for producing an anti-resonant hollow-core fiber17 Mar 2026US 12,577,143 B2Heraeus Quarzglas GmbH & Co.KG
- Bead production method10 Feb 2026US 12,545,614 B2Toledo Museum of Art
- Multi-core optical fiber preform, multi-core optical fiber preform production method, and multi-core optical fiber production method4 Nov 2025US 12,459,853 B2Fujikura Ltd.
- Fabrication method and use of F40 mm large-size and high-contrast21 Oct 2025US 12,448,316 B2China Building Materials Academy Co., Ltd.
- Laser welded glass article and method of manufacturing the same using a welding emission with beam waist separated from interface between glass components to be laser welded17 Sep 2026US 2026/0274735 A1Corning Incorporated
- Fiber preform with laser weld volume including ultraviolet absorbing constituent and method of manufacturing the same17 Sep 2026US 2026/0274736 A1Corning Incorporated
- Anti-resonance element preform for producing an anti-resonant hollow-core fiber6 Aug 2026US 2026/0225938 A1Heraeus Quarzglas GmbH & Co.KG
- Method of Preparation of a Multicore Fiber Preform18 Jun 2026US 2026/0167550 A1Heraeus Quartz North America LLC
- Method of manufacturing optical fiber preform8 Jan 2026US 2026/0008713 A1Sumitomo Electric Industries, Ltd.
Most cited
By later US patents
- Apparatus for making linearly tapered bores in quartz tubing with a controlled laser49US 5,512,078 A1996
- Multiple-channel tubular devices40US 4,127,398 ANi-Tec, Inc. · 1978
- Method for making optical fiber preforms by collapsing a hollow glass tube upon a glass rod33US 5,578,106 ALucent Technologies Inc. · 1996
- Hollow tube method for forming an optical fiber32US 4,551,162 APolaroid Corporation · 1985
- Structural reinforced glass-ceramic matrix products and method26US 3,948,317 AOwens-Illinois, Inc. · 1976