C03B 37/027
Fibres composed of different sorts of glass
Official title: Fibres composed of different sorts of glass, {e.g. glass optical fibres}(C03B37/0253, C03B37/028 take precedence)
C03B37/027 (Fibres composed of different sorts of glass) appears on 841 US grants and 803 published applications in this corpus.
Search patents in C03B- Granted patents
- 841
- Published applications
- 803
- Assignees
- 299
- Inventors
- 1,661
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 13 | 0 |
| 1980 | 10 | 0 |
| 1981 | 14 | 0 |
| 1982 | 8 | 0 |
| 1983 | 11 | 0 |
| 1984 | 9 | 0 |
| 1985 | 10 | 0 |
| 1986 | 7 | 0 |
| 1987 | 15 | 0 |
| 1988 | 8 | 0 |
| 1989 | 11 | 0 |
| 1990 | 11 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 15 | 0 |
| 1999 | 20 | 0 |
| 2000 | 19 | 0 |
| 2001 | 20 | 18 |
| 2002 | 22 | 39 |
| 2003 | 35 | 38 |
| 2004 | 32 | 50 |
| 2005 | 23 | 45 |
| 2006 | 20 | 29 |
| 2007 | 14 | 15 |
| 2008 | 13 | 18 |
| 2009 | 11 | 29 |
| 2010 | 19 | 22 |
| 2011 | 24 | 22 |
| 2012 | 18 | 19 |
| 2013 | 16 | 22 |
| 2014 | 16 | 15 |
| 2015 | 25 | 37 |
| 2016 | 28 | 22 |
| 2017 | 26 | 30 |
| 2018 | 21 | 32 |
| 2019 | 22 | 47 |
| 2020 | 29 | 50 |
| 2021 | 25 | 36 |
| 2022 | 38 | 41 |
| 2023 | 31 | 30 |
| 2024 | 25 | 34 |
| 2025 | 28 | 31 |
| 2026 | 18 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C03B 37/02718Thermal treatment of the fibre during the drawing process183
- C03B 37/02781Hollow fibres118
- C03B 37/02736Means for supporting, rotating or feeding the tubes, rods, fibres or filaments80
- C03B 37/02745Fibres having rotational spin around the central longitudinal axis72
- C03B 37/02754Solid fibres drawn from hollow preforms59
- C03B 37/02709Polarisation maintaining fibres43
- C03B 37/0279Photonic crystal fibres or microstructured optical fibres other than holey optical fibres38
- C03B 37/02763Fibres having axial variations28
All 9 subgroupsShow fewer
Recent patents
- Hollow core optical fibers and methods of making6 Oct 2026US 12,753,108 B2Corning Incorporated
- Optical fiber preform production method, optical fiber preform, and optical fiber production method29 Sep 2026US 12,747,183 B2Fujikura Ltd.
- Anti-resonant optical component and method for the production of same8 Sep 2026US 12,730,258 B2Heraeus Quarzglas GmbH & Co.KG
- Polarization maintaining optical fiber and polarization maintaining optical fiber manufacturing method11 Aug 2026US 12,704,672 B2Sumitomo Electric Industries, Ltd.
- Methods for producing hollow-core optical fibers2 Jun 2026US 12,645,027 B2Corning Incorporated
- Hollow core optical fibre drawing method with modified preform10 Sep 2026US 2026/0265114 A1University of Southampton
- Infrared-transmitting, polarization-maintaining optical fiber and method for making27 Aug 2026US 2026/0250178 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Anti-resonant hollow core optical fiber with contacting cladding elements with multiply nested capillaries27 Aug 2026US 2026/0251841 A1Corning Incorporated
- Hollow core optical fibre with yield tolerant microstructure6 Aug 2026US 2026/0227566 A1University of Southampton
- Methods of Pedestal Shaping in Optical Fibers and Related Structures30 Jul 2026US 2026/0217589 A1The Government of the United States of America, as represented by the Secretary of the Navy
Most cited
By later US patents
- Article comprising a micro-structured optical fiber, and method of making such fiber283US 5,802,236 ALucent Technologies Inc. · 1998
- Relational database management system having integrated non-relational multi-dimensional data store of aggregated data elements251US 6,385,604 B1Hyperroll Israel, Ltd. · 2002
- Active optical fiber and method for fabricating an active optical fiber235US 8,433,168 B2Optoelectronics Research Center, Tampere University of Technology · 2013
- Method and apparatus for drawing optical fibers107US 5,284,499 ACorning Incorporated · 1994
- Microstructured optical fibers and methods105US 7,450,806 B2Corning Incorporated · 2008