C03B 2207/04
Multi-nested ports
C03B2207/04 (Multi-nested ports) appears on 173 US grants and 119 published applications in this corpus.
Search patents in C03B- Granted patents
- 173
- Published applications
- 119
- Assignees
- 50
- Inventors
- 322
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 10 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 4 |
| 2002 | 10 | 11 |
| 2003 | 7 | 8 |
| 2004 | 13 | 10 |
| 2005 | 1 | 10 |
| 2006 | 3 | 8 |
| 2007 | 3 | 2 |
| 2008 | 2 | 0 |
| 2009 | 1 | 7 |
| 2010 | 1 | 7 |
| 2011 | 2 | 7 |
| 2012 | 3 | 3 |
| 2013 | 7 | 5 |
| 2014 | 5 | 5 |
| 2015 | 3 | 3 |
| 2016 | 4 | 1 |
| 2017 | 6 | 1 |
| 2018 | 0 | 4 |
| 2019 | 1 | 3 |
| 2020 | 5 | 2 |
| 2021 | 1 | 5 |
| 2022 | 4 | 6 |
| 2023 | 3 | 2 |
| 2024 | 3 | 2 |
| 2025 | 3 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C03B 2207/06Concentric circular portsIndexing code160
- C03B 2207/12Nozzle or orifice platesIndexing code71
- C03B 2207/14Tapered or flared nozzles or ports angled to central burner axisIndexing code45
- C03B 2207/08Recessed or protruding portsIndexing code41
- C03B 2207/16Non-circular portsIndexing code11
- C03B 2207/18Eccentric portsIndexing code8
- C03B 2207/10Split portsIndexing code6
Recent patents
- Optical fiber preform24 Mar 2026US 12,583,782 B2Shin-Etsu Chemical Co., Ltd.
- Methods of forming silica-titania glass articles with reduced striae dimensions11 Nov 2025US 12,466,755 B2Corning Incorporated
- Synthetic quartz glass manufacturing method through OVD process with improved deposition efficiency16 Sep 2025US 12,415,743 B2BCnC Co., Ltd.
- Manufacturing method for glass particulate deposit and burner1 Apr 2025US 12,264,097 B2Shin-Etsu Chemical Co., Ltd.
- Process for the preparation of synthetic quartz glass13 Aug 2024US 12,060,293 B2Heraeus Quarzglas GmbH & Co.KG
- Microfluidic devices with pairing regions and droplet generators23 Apr 2026US 2026/0108886 A1Hewlett-Packard Development Company, L. P.
- Methods of forming silica-titania glass articles with reduced striae dimensions1 Jan 2026US 2026/0001801 A1Corning Incorporated
- Optical fiber preform and method for producing optical fiber preform27 Feb 2025US 2025/0066239 A1Shin-Etsu Chemical Co., Ltd.
- Single cell sensing and selection18 Apr 2024US 2024/0123446 A1Hewlett-Packard Development Company, L. P.
- Manufacturing method for glass particulate deposit and burner25 Jan 2024US 2024/0025792 A1Shin-Etsu Chemical Co., Ltd.
Most cited
By later US patents
- Method of making fused silica by decomposing siloxanes106US 5,043,002 ACorning Incorporated · 1991
- Method of making fused silica70US 5,152,819 ACorning Incorporated · 1992
- Continuous optical fiber preform fabrication method65US 4,062,665 ANippon Telegraph & Telephone Public Corporation · 1977
- Optical members and blanks or synthetic silica glass and method for their production62US 5,086,352 AHeraeus Quarzglas GmbH & Co.KG · 1992
- Process for preparing glass preform for optical fiber46US 4,402,720 ANippon Telegraph & Telephone Public Corporation · 1983