C03B 2203/19
Alternating positive/negative spins or twists
C03B2203/19 (Alternating positive/negative spins or twists) appears on 54 US grants and 63 published applications in this corpus.
Search patents in C03B- Granted patents
- 54
- Published applications
- 63
- Assignees
- 29
- Inventors
- 145
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 3 |
| 2003 | 8 | 5 |
| 2004 | 4 | 19 |
| 2005 | 3 | 5 |
| 2006 | 4 | 8 |
| 2007 | 6 | 0 |
| 2008 | 5 | 2 |
| 2009 | 0 | 3 |
| 2010 | 2 | 3 |
| 2011 | 5 | 5 |
| 2012 | 3 | 2 |
| 2013 | 2 | 1 |
| 2014 | 4 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fiber-based angular homogenizer25 Nov 2025US 12,481,167 B2nLIGHT, Inc.
- Optical fiber guide device12 May 2015US 9,031,374 B2Conductix Wampfler France
- Optical fiber and method of manufacturing optical fiber9 Dec 2014US 8,909,016 B2Sumitomo Electric Industries, Ltd.
- Optical fiber and method and apparatus for manufacturing optical fiber14 Oct 2014US 8,857,221 B2Fujikura Ltd.
- Coated optical fiber producing apparatus and coated optical fiber producing method24 Jun 2014US 8,756,906 B2Sumitomo Electric Industries, Ltd.
- Method for measuring twist of optical fiber and method for manufacturing optical fiber11 Jun 2026US 2026/0160641 A1Sumitomo Electric Industries, Ltd.
- Optical fiber production device and optical fiber production method8 May 2025US 2025/0145524 A1Sumitomo Electric Industries, Ltd.
- Fiber-based angular homogenizer9 Nov 2023US 2023/0359051 A1nLIGHT, Inc.
- Manufacturing method and manufacturing apparatus of optical fiber8 Oct 2015US 2015/0285994 A1Fujikura Ltd.
- Optical fiber and method of manufacturing optical fiber22 May 2014US 2014/0137604 A1Sumitomo Electric Industries, Ltd.
Most cited
By later US patents
- Method of making a fiber having low polarization mode dispersion due to a permanent spin58US 5,298,047 AAT&T Bell Laboratories · 1994
- Article comprising optical fiber having low polarization mode dispersion, due to permanent spin41US 5,418,881 AAT&T Corp. · 1995
- Multimode optical fibers with increased bandwidth39US 7,043,128 B2Furukawa Electric North America, Inc. · 2006
- Method of impressing a twist on a multimode fiber during drawing31US 6,735,985 B2Furukawa Electric North America, Inc. · 2004
- Composite waveguide28US 7,424,193 B2The Regents of the University of Michigan · 2008