C03B 37/01869
Collapsing
Official title: {Collapsing}
C03B37/01869 (Collapsing) appears on 86 US grants and 61 published applications in this corpus.
Search patents in C03B- Granted patents
- 86
- Published applications
- 61
- Assignees
- 45
- Inventors
- 217
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 6 |
| 2003 | 2 | 4 |
| 2004 | 4 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 4 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 3 | 3 |
| 2011 | 1 | 0 |
| 2012 | 1 | 8 |
| 2013 | 0 | 1 |
| 2014 | 2 | 1 |
| 2015 | 2 | 5 |
| 2016 | 4 | 3 |
| 2017 | 4 | 4 |
| 2018 | 0 | 2 |
| 2019 | 4 | 5 |
| 2020 | 3 | 2 |
| 2021 | 2 | 2 |
| 2022 | 5 | 0 |
| 2023 | 3 | 2 |
| 2024 | 0 | 2 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing optical fiber base material, and optical fiber base material26 Aug 2025US 12,398,062 B2Sumitomo Electric Industries, Ltd.
- Plasma chemical vapor deposition process26 Aug 2025US 12,398,063 B2Draka Comteq B.V.
- Method for manufacturing a preform for optical fibers10 Oct 2023US 11,780,762 B2Prysmian S P A.
- Photodarkening-resistant ytterbium-doped quartz optical fiber and preparation method therefor10 Oct 2023US 11,780,768 B2Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences
- Method for manufacturing optical fiber parent material, and method for manufacturing optical fiber6 Jun 2023US 11,667,559 B2Sumitomo Electric Industries, Ltd.
- Multicore optical fiber4 Jun 2026US 2026/0153668 A1Sumitomo Electric Industries, Ltd.
- Controlling refractive index profile during fiber preform manufacturing11 Jul 2024US 2024/0230984 A9Lumentum Operations LLC
- Controlling refractive index profile during fiber preform manufacturing25 Apr 2024US 2024/0134113 A1Lumentum Operations LLC
- Plasma Chemical Vapor Deposition Process5 Oct 2023US 2023/0312392 A1Draka Comteq B.V.
- Method for producing optical fiber base material, and optical fiber base material29 Jun 2023US 2023/0202904 A1Sumitomo Electric Industries, Ltd.
Most cited
By later US patents
- Method for producing a preform for drawing optical fibers38US 4,636,236 AAEG-Telefunken Kabelwerke AG, Rheydt · 1987
- Method of making optical fiber having depressed index core region38US 5,917,109 ACorning Incorporated · 1999
- MCVD method of making a low OH fiber preform with a hydrogen-free heat source36US 5,397,372 AAT&T Corp. · 1995
- Method for producing glass preform for optical fiber34US 5,314,518 ASumitomo Electric Industries, Ltd. · 1994
- Method of making a large MCVD single mode fiber preform by varying internal pressure to control preform straightness33US 6,105,396 ALucent Technologies Inc. · 2000