C03B 37/01211
By inserting one or more rods or tubes into a tube
Official title: {by inserting one or more rods or tubes into a tube}
C03B37/01211 (By inserting one or more rods or tubes into a tube) appears on 591 US grants and 611 published applications in this corpus.
Search patents in C03B- Granted patents
- 591
- Published applications
- 611
- Assignees
- 217
- Inventors
- 1,209
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 9 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 8 | 0 |
| 2000 | 14 | 0 |
| 2001 | 10 | 2 |
| 2002 | 20 | 25 |
| 2003 | 19 | 22 |
| 2004 | 14 | 40 |
| 2005 | 14 | 33 |
| 2006 | 22 | 29 |
| 2007 | 15 | 17 |
| 2008 | 12 | 14 |
| 2009 | 8 | 18 |
| 2010 | 20 | 20 |
| 2011 | 12 | 15 |
| 2012 | 18 | 24 |
| 2013 | 17 | 24 |
| 2014 | 18 | 10 |
| 2015 | 17 | 22 |
| 2016 | 19 | 20 |
| 2017 | 18 | 17 |
| 2018 | 17 | 19 |
| 2019 | 13 | 32 |
| 2020 | 9 | 32 |
| 2021 | 18 | 18 |
| 2022 | 25 | 37 |
| 2023 | 27 | 30 |
| 2024 | 22 | 33 |
| 2025 | 32 | 27 |
| 2026 | 19 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C03B 37/0122For making preforms of photonic crystal, microstructured or holey optical fibres168
- C03B 37/01222For making preforms of multiple core optical fibres90
- C03B 37/01217For making preforms of polarisation-maintaining optical fibres80
- C03B 37/01214For making preforms of multifibres, fibre bundles other than multiple core preforms42
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.
- Hollow-core optical fibers22 Sep 2026US 12,742,925 B2Corning Incorporated
- Process of making multi-core fiber preform by integrating core rods and cladding cylinder15 Sep 2026US 12,735,344 B2Heraeus Quartz North America LLC
- Anti-resonant optical component and method for the production of same8 Sep 2026US 12,730,258 B2Heraeus Quarzglas GmbH & Co.KG
- 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
- 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
- Production method for glass preform and production apparatus for glass preform20 Aug 2026US 2026/0242272 A1Sumitomo Electric Industries, Ltd.
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
- Multi-core optical fiber and method of manufacturing the same245US 8,737,793 B2Furukawa Electric Co., Ltd. · 2014
- Thermal sensing fiber devices242US 7,567,740 B2Massachusetts Institute of Technology · 2009
- Ultra high numerical aperture optical fibers242US 7,715,672 B2Imra America, Inc. · 2010
- Method of producing elliptic core type polarization-maintaining optical fiber241US 5,482,525 AHitachi Cable, Ltd. · 1996