B29C 31/02
Dispensing from vessels
Official title: Dispensing from vessels, e.g. hoppers {(into a mould cavity B29C31/04; large containers characterised by discharge means B65D88/28, B65D88/54)}
B29C31/02 (Dispensing from vessels) appears on 150 US grants and 158 published applications in this corpus.
Search patents in B29C- Granted patents
- 150
- Published applications
- 158
- Assignees
- 111
- Inventors
- 338
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 2 |
| 2003 | 0 | 3 |
| 2004 | 3 | 2 |
| 2005 | 2 | 5 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 2 | 7 |
| 2009 | 1 | 3 |
| 2010 | 3 | 1 |
| 2011 | 4 | 6 |
| 2012 | 5 | 5 |
| 2013 | 3 | 9 |
| 2014 | 4 | 4 |
| 2015 | 8 | 13 |
| 2016 | 6 | 6 |
| 2017 | 8 | 12 |
| 2018 | 7 | 17 |
| 2019 | 5 | 15 |
| 2020 | 8 | 12 |
| 2021 | 7 | 13 |
| 2022 | 9 | 5 |
| 2023 | 4 | 2 |
| 2024 | 10 | 7 |
| 2025 | 2 | 2 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sensor system for dry powder electrode formation and methods of using the same8 Sep 2026US 12,728,565 B2Matthews International Corporation
- Device and method for processing bulk material18 Aug 2026US 12,709,043 B2Coperion GmbH
- Thermal melting three-dimensional printer and method for producing molded object24 Mar 2026US 12,583,181 B2Kyoraku Co., Ltd.
- Device for supplying a mold with a polymerizable mixture6 Jan 2026US 12,515,375 B2Essilor International
- Powder supply method and production method for thermoplastic resin composition4 Nov 2025US 12,458,941 B2Sumitomo Chemical Company, Limited
- Dehumidification drying system for synthetic resin molding material23 Jul 2026US 2026/0210629 A1Osaka Reiken Co., Ltd.
- Conveying and drying systems for granulated materials12 Mar 2026US 2026/0070747 A1Novatec, Inc.
- Molding apparatus and method19 Jun 2025US 2025/0196406 A1Global Polymer Industries, Inc.
- Powder Hopper for the Gravity-Driven Feeding of Powdered Electrode Precursor Material Into a Nip of a Dry Electrode Caldender, Corresponding Assembly, and Corresponding Method2 Jan 2025US 2025/0001650 A1
- Sensor System for Dry Powder Electrode Formation and Methods of Using the Same19 Dec 2024US 2024/0417177 A1Matthews International Corporation
Most cited
By later US patents
- Apparatus and methods for handling materials in a 3-D printer106US 8,185,229 B23D Systems, Inc. · 2012
- Method and apparatus for metering and blending different material ingredients97US 5,148,943 AHydreclaim Corporation · 1992
- Removable material hopper assembly and method of using same to eliminate residual ingredient material92US 6,774,318 B2Process Control Corporation · 2004
- Device for a layerwise manufacturing of a three-dimensional object and method for inserting and removing respectively, a container75US 7,976,302 B2EOS GmbH Electro Optical Systems · 2011
- Feed system for particulate material and transition hopper therefor74US 5,791,830 ANordson Corporation · 1998