C03B 2203/16
Hollow core
C03B2203/16 (Hollow core) appears on 194 US grants and 235 published applications in this corpus.
Search patents in C03B- Granted patents
- 194
- Published applications
- 235
- Assignees
- 88
- Inventors
- 407
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 11 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 8 |
| 2003 | 4 | 11 |
| 2004 | 5 | 12 |
| 2005 | 8 | 7 |
| 2006 | 7 | 9 |
| 2007 | 8 | 8 |
| 2008 | 4 | 5 |
| 2009 | 1 | 5 |
| 2010 | 6 | 7 |
| 2011 | 4 | 3 |
| 2012 | 2 | 3 |
| 2013 | 3 | 0 |
| 2014 | 1 | 3 |
| 2015 | 1 | 6 |
| 2016 | 4 | 3 |
| 2017 | 4 | 5 |
| 2018 | 5 | 6 |
| 2019 | 6 | 11 |
| 2020 | 5 | 13 |
| 2021 | 8 | 8 |
| 2022 | 9 | 24 |
| 2023 | 10 | 8 |
| 2024 | 12 | 23 |
| 2025 | 22 | 15 |
| 2026 | 11 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hollow core optical fibers and methods of making6 Oct 2026US 12,753,108 B2Corning Incorporated
- Hollow-core optical fibers22 Sep 2026US 12,742,925 B2Corning Incorporated
- Anti-resonant optical component and method for the production of same8 Sep 2026US 12,730,258 B2Heraeus Quarzglas GmbH & Co.KG
- Large-sized hollow porous quartz glass preform and method of manufacturing the same28 Jul 2026US 12,692,184 B2Shin-Etsu Quartz Products Co., Ltd.
- Methods for producing hollow-core optical fibers2 Jun 2026US 12,645,027 B2Corning Incorporated
- Hollow-core preforms and hollow-core optical fibers and methods of making the same1 Oct 2026US 2026/0296948 A1Corning Incorporated
- Fiber preform with laser weld volume including ultraviolet absorbing constituent and method of manufacturing the same17 Sep 2026US 2026/0274736 A1Corning Incorporated
- Hollow core optical fibre drawing method with modified preform10 Sep 2026US 2026/0265114 A1University of Southampton
- Anti-resonant hollow core optical fiber with contacting cladding elements with multiply nested capillaries27 Aug 2026US 2026/0251841 A1Corning Incorporated
- Antiresonant hollow core fiber with low-index coating13 Aug 2026US 2026/0235801 A1University of Central Florida Research Foundation, Inc.
Most cited
By later US patents
- Hollow microspheres199US 4,303,732 A1981
- Method for making hollow porous microspheres166US 4,671,909 A1987
- Hollow porous microspheres made from dispersed particle compositions150US 5,397,759 A1995
- Hollow microspheres140US 4,303,730 A1981
- Hollow porous microspheres as substrates and containers for catalyst136US 4,793,980 A1988