C03B 37/08
Bushings
Official title: Bushings {, e.g. construction, bushing reinforcement means}; Spinnerettes; Nozzles; Nozzle plates
C03B37/08 (Bushings) appears on 306 US grants and 103 published applications in this corpus.
Search patents in C03B- Granted patents
- 306
- Published applications
- 103
- Assignees
- 86
- Inventors
- 402
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 12 | 0 |
| 1978 | 11 | 0 |
| 1979 | 9 | 0 |
| 1980 | 8 | 0 |
| 1981 | 13 | 0 |
| 1982 | 20 | 0 |
| 1983 | 13 | 0 |
| 1984 | 17 | 0 |
| 1985 | 17 | 0 |
| 1986 | 12 | 0 |
| 1987 | 19 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 2 |
| 2002 | 5 | 3 |
| 2003 | 3 | 11 |
| 2004 | 5 | 1 |
| 2005 | 0 | 3 |
| 2006 | 2 | 4 |
| 2007 | 3 | 4 |
| 2008 | 1 | 8 |
| 2009 | 2 | 3 |
| 2010 | 2 | 4 |
| 2011 | 6 | 6 |
| 2012 | 2 | 6 |
| 2013 | 3 | 3 |
| 2014 | 5 | 3 |
| 2015 | 2 | 7 |
| 2016 | 2 | 3 |
| 2017 | 5 | 7 |
| 2018 | 4 | 1 |
| 2019 | 2 | 2 |
| 2020 | 3 | 2 |
| 2021 | 0 | 4 |
| 2022 | 4 | 1 |
| 2023 | 1 | 4 |
| 2024 | 3 | 7 |
| 2025 | 1 | 1 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High capacity bushing plate for producing igneous rock fibers9 Jun 2026US 12,649,681 B2Rock Fiber, Inc.
- Vertical melting furnace for igneous rock fiber manufacturing17 Mar 2026US 12,577,140 B2Rock Fiber, Inc.
- Spinners17 Feb 2026US 12,552,702 B2Owens Corning Intellectual Capital, LLC
- Glass fiber nozzle structure, bushing and production device21 Jan 2025US 12,202,760 B2Jushi Group Co., Ltd.
- Bushing for producing glass fibers and method for producing glass fibers6 Aug 2024US 12,054,417 B2Tanaka Kikinzoku Kogyo K.K.
- High capacity bushing plate for producing igneous rock fibers1 Oct 2026US 2026/0296949 A1Rock Fiber, Inc.
- Vertical melting furnace for igneous rock fiber manufacturing23 Jul 2026US 2026/0209099 A1Rock Fiber, Inc.
- Spinners28 May 2026US 2026/0145988 A1Owens Corning Intellectual Capital, LLC
- Method of Manufacturing a Cubic Boron Nitride (CBN) Bushing with Improved Temperature Control and Wear Resistance10 Jul 2025US 2025/0223234 A1
- Resorbable and biocompatible glass fiber bundle having a well-defined diameter and process for making such5 Dec 2024US 2024/0401247 A1
Most cited
By later US patents
- Glass melting apparatus and method86US 6,314,760 B1Guardian Fiberglass, Inc. · 2001
- Hollow glass fiber bushing, method of making hollow fibers and the hollow glass fibers made by that method76US 4,758,259 APPG Industries, Inc. · 1988
- Hollow glass fiber bushing assembly65US 4,735,642 APPG Industries, Inc. · 1988
- Glass melting apparatus and method including exhausting the furnace atmosphere by removal of a heating element64US 6,418,755 B2Guardian Fiberglass, Inc. · 2002
- Low viscosity E-glass composition enabling the use of platinum and rhodium free bushings59US 7,767,606 B2OCV Intellectual Capital, LLC · 2010