B29C 33/70
Maintenance
B29C33/70 (Maintenance) appears on 263 US grants and 252 published applications in this corpus.
Search patents in B29C- Granted patents
- 263
- Published applications
- 252
- Assignees
- 216
- Inventors
- 661
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 2 | 1 |
| 2002 | 10 | 3 |
| 2003 | 4 | 11 |
| 2004 | 3 | 3 |
| 2005 | 2 | 10 |
| 2006 | 3 | 11 |
| 2007 | 1 | 6 |
| 2008 | 10 | 6 |
| 2009 | 7 | 9 |
| 2010 | 1 | 3 |
| 2011 | 4 | 6 |
| 2012 | 5 | 7 |
| 2013 | 4 | 9 |
| 2014 | 4 | 11 |
| 2015 | 10 | 18 |
| 2016 | 8 | 9 |
| 2017 | 9 | 19 |
| 2018 | 11 | 18 |
| 2019 | 14 | 15 |
| 2020 | 11 | 10 |
| 2021 | 15 | 13 |
| 2022 | 8 | 15 |
| 2023 | 11 | 9 |
| 2024 | 12 | 16 |
| 2025 | 7 | 7 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compression molding die, resin molding device, resin molding system, and method for manufacturing resin molded product3 Mar 2026US 12,564,986 B2Towa Corporation
- Resin residue removal device17 Feb 2026US 12,552,082 B2Kyoraku Co., Ltd.
- Method of making a composite mould tool and repairing method of a composite mould tool4 Nov 2025US 12,459,163 B2BAE SYSTEMS plc
- Automatic cleaning system and method for removing debris from dies19 Aug 2025US 12,390,961 B2Magna International Inc.
- Device for treating a mold surface, use of the device, and method for treating a mold surface17 Jun 2025US 12,330,348 B2Klingspor Windpower AG
- Method for cleaning molding tools for molding fibrous materials and molding tool23 Jul 2026US 2026/0208400 A1KIEFEL GmbH
- Cleaning agent composition, cleaning material, and method of cleaning mold for molding4 Jun 2026US 2026/0152705 A1Resonac Corporation
- Film processing line for producing a plastic film web and method for cleaning components of film processing lines for producing a film web28 May 2026US 2026/0145367 A1Reifenhauser GmbH & Co. Maschinenfabrik
- Film forming apparatus, film forming method, and article manufacturing method21 May 2026US 2026/0138324 A1Canon Kabushiki Kaisha
- Cleaning agent composition, cleaning material, and method of cleaning mold for molding7 May 2026US 2026/0124792 A1Resonac Corporation
Most cited
By later US patents
- Injection molding machine having an automatic mold changer32US 5,249,947 AFanuc Corporation · 1993
- Cleaning composition for mold for molding semiconductor device and method of cleaning mold using the same30US 6,077,360 ANitto Denko Corporation · 2000
- Robotic laser tire mold cleaning system and method of use30US 6,369,353 B1The Goodyear Tire & Rubber Company · 2002
- System for cleaning molding equipment using a laser29US 5,373,140 AVernay Laboratories, Inc. · 1994
- Thermoplastic resin composition for cleaning26US 4,838,945 AChisso Corporation · 1989