B29C 44/3461
Making or treating expandable particles
Official title: {Making or treating expandable particles}
B29C44/3461 (Making or treating expandable particles) appears on 300 US grants and 327 published applications in this corpus.
Search patents in B29C- Granted patents
- 300
- Published applications
- 327
- Assignees
- 173
- Inventors
- 729
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 1 |
| 2002 | 6 | 6 |
| 2003 | 9 | 1 |
| 2004 | 2 | 6 |
| 2005 | 1 | 12 |
| 2006 | 3 | 5 |
| 2007 | 4 | 9 |
| 2008 | 2 | 5 |
| 2009 | 2 | 14 |
| 2010 | 6 | 12 |
| 2011 | 5 | 3 |
| 2012 | 5 | 18 |
| 2013 | 7 | 12 |
| 2014 | 9 | 13 |
| 2015 | 10 | 14 |
| 2016 | 14 | 20 |
| 2017 | 8 | 11 |
| 2018 | 13 | 17 |
| 2019 | 15 | 24 |
| 2020 | 10 | 18 |
| 2021 | 11 | 15 |
| 2022 | 11 | 15 |
| 2023 | 11 | 21 |
| 2024 | 10 | 24 |
| 2025 | 17 | 19 |
| 2026 | 15 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polyethylene resin foamed particle, and method for producing same15 Sep 2026US 12,735,545 B2Jsp Corporation
- Method for the production of cellular plastic particles25 Aug 2026US 12,715,162 B2FOX Velution GmbH
- Method for the production of cellular plastic particles25 Aug 2026US 12,715,163 B2FOX Velution GmbH
- Expanded polymer pellets11 Aug 2026US 12,703,131 B2adidas AG
- Foamed particles of aromatic polyester resin, production method therefor, molded foam, and member for vehicle11 Aug 2026US 12,703,776 B2Sekisui Kasei Co., Ltd.
- Foamed propylene-based elastomer compositions, methods for making and products made therefrom27 Aug 2026US 2026/0250476 A1
- Cellulose ester particulates having reduced moisture content for foam sheet production processes6 Aug 2026US 2026/0226197 A1Eastman Chemical Company
- Method for coating of polystyrene particles30 Jul 2026US 2026/0217934 A1Ioi Oleo GmbH
- Method for producing aliphatic polyester-based foam particles4 Jun 2026US 2026/0152613 A1Kaneka Corporation
- Method for producing polypropylene-based resin expanded beads4 Jun 2026US 2026/0152614 A1Jsp Corporation
Most cited
By later US patents
- Process for producing prefoamed polymer particles78US 4,464,484 AJapan Styrene Paper Corporation · 1984
- Moldable shrunken thermoplastic polymer foam beads72US 5,026,736 AAstro-Valcour, Inc. · 1991
- Reinforced polymer composite foams and method of manufacture71US 8,852,473 B1Wright Materials Research Co. · 2014
- Extrudable composite of polymer and wood flour61US 6,066,680 AMarley Mouldings Inc. · 2000
- Polymer and wood flour composite extrusion58US 5,847,016 AMarley Mouldings Inc. · 1998