C03B 23/043
Heating devices specially adapted for re-forming tubes or rods in general
Official title: Heating devices specially adapted for re-forming tubes or rods in general, e.g. burners
C03B23/043 (Heating devices specially adapted for re-forming tubes or rods in general) appears on 103 US grants and 95 published applications in this corpus.
Search patents in C03B- Granted patents
- 103
- Published applications
- 95
- Assignees
- 56
- Inventors
- 252
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 2 |
| 2002 | 1 | 5 |
| 2003 | 3 | 5 |
| 2004 | 5 | 8 |
| 2005 | 3 | 5 |
| 2006 | 3 | 5 |
| 2007 | 1 | 0 |
| 2008 | 2 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 3 |
| 2011 | 3 | 1 |
| 2012 | 0 | 3 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 4 |
| 2017 | 0 | 3 |
| 2018 | 2 | 5 |
| 2019 | 2 | 5 |
| 2020 | 3 | 4 |
| 2021 | 2 | 6 |
| 2022 | 8 | 8 |
| 2023 | 3 | 4 |
| 2024 | 9 | 7 |
| 2025 | 4 | 3 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bottom forming process21 Apr 2026US 12,606,478 B2SCHOTT Pharma AG & Co. KGaA
- Glass tube converting process with piercing during index10 Mar 2026US 12,570,565 B2Corning Incorporated
- Methods to control thermal variation during tube consumption in glass tube converting24 Feb 2026US 12,559,407 B2Corning Incorporated
- Feedback control systems and methods for glass tube converting processes4 Nov 2025US 12,459,852 B2Corning Incorporated
- Glass tip with cross cut end for use with smokable substances contained within a wrap and method for manufacturing the tip7 Oct 2025US 12,433,329 B2R.Y. L. Inc.
- Systems and methods for glass tube separation and sealing using lasers13 Aug 2026US 2026/0234044 A1Corning Incorporated
- Methods and apparatus for making glass vials using lasers6 Aug 2026US 2026/0225937 A1Corning Incorporated
- Systems and methods for converting glass tubes with microwaves of mm-wavelengths9 Jul 2026US 2026/0193124 A1Corning Incorporated
- Glass tube converting process with piercing during index18 Jun 2026US 2026/0167549 A1Corning Incorporated
- Emitter tips and methods for manufacture14 May 2026US 2026/0132069 A1Thermo Finnigan LLC
Most cited
By later US patents
- Uniform-burning matrix burner81US 6,183,241 B2Midwest Research Institute · 2001
- Method and an apparatus for heating glass tubes29US 4,760,230 AStiftelsen Institutet for Mikrovagsteknik vid Tekniska Hogskolan i Stockholm · 1988
- Methods of and apparatus for heating a glass tube20US 4,231,777 AWestern Electric Company, Inc. · 1980
- Apparatus and method for overcladding optical fiber preform rod and optical fiber drawing method19US 6,053,013 ASamsung Electroncs Co., Ltd. · 2000
- Method of and apparatus for straightening and configuring a preform tube from which lightguide fiber is drawn17US 4,477,273 AAT&T Technologies, Inc. · 1984