C03B 2215/72
Barrel presses or equivalent
Official title: Barrel presses or equivalent, e.g. of the ring mould type
C03B2215/72 (Barrel presses or equivalent) appears on 110 US grants and 110 published applications in this corpus.
Search patents in C03B- Granted patents
- 110
- Published applications
- 110
- Assignees
- 48
- Inventors
- 222
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 9 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 3 |
| 2003 | 4 | 12 |
| 2004 | 4 | 11 |
| 2005 | 3 | 6 |
| 2006 | 7 | 11 |
| 2007 | 6 | 10 |
| 2008 | 5 | 8 |
| 2009 | 5 | 3 |
| 2010 | 3 | 6 |
| 2011 | 3 | 5 |
| 2012 | 2 | 1 |
| 2013 | 2 | 4 |
| 2014 | 2 | 2 |
| 2015 | 1 | 5 |
| 2016 | 6 | 2 |
| 2017 | 2 | 7 |
| 2018 | 4 | 0 |
| 2019 | 3 | 1 |
| 2020 | 0 | 2 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of molding optical element and mold for molding optical element17 Feb 2026US 12,552,698 B2Olympus Corporation
- Lens unit and manufacturing method of lens unit13 Dec 2022US 11,525,982 B2Hoya Corporation
- Optical element manufacturing apparatus11 Jun 2019US 10,315,945 B2Olympus Corporation
- Optical element shaping mold set and optical element manufacturing method19 Mar 2019US 10,233,108 B2Olympus Corporation
- Optical element molding mold set and optical element manufacturing method19 Feb 2019US 10,207,946 B2Olympus Corporation
- Molding apparatus and molding method18 Jun 2026US 2026/0167546 A1Canon Kabushiki Kaisha
- Method for manufacturing member, apparatus for manufacturing member, and die21 May 2026US 2026/0138907 A1Canon Kabushiki Kaisha
- Mold for molding glass-made optical component16 Apr 2026US 2026/0103418 A1Okamoto Glass Co., Ltd.
- Mold for an optical element13 Jun 2024US 2024/0190749 A1Olympus Corporation
- Method of molding optical element and mold for molding optical element23 Nov 2023US 2023/0373840 A1Olympus Corporation
Most cited
By later US patents
- Process to mold precision glass articles35US 4,481,023 ACorning Glass Works · 1984
- Process for producing mold used for obtaining press molded glass article34US 5,008,002 AHoya Corporation · 1991
- Method of manufacturing pressed lenses33US 4,629,489 AHoya Corporation · 1986
- Molding method for optical element33US 5,173,100 ACanon Kabushiki Kaisha · 1992
- Process to mold precision glass articles25US 4,734,118 ACorning Glass Works · 1988