B29C 48/515
For auxiliary fluids
Official title: for auxiliary fluids, e.g. foaming agents
B29C48/515 (For auxiliary fluids) appears on 52 US grants and 37 published applications in this corpus.
Search patents in B29C- Granted patents
- 52
- Published applications
- 37
- Assignees
- 50
- Inventors
- 122
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 2 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 3 |
| 2016 | 0 | 2 |
| 2017 | 2 | 3 |
| 2018 | 0 | 3 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 0 | 1 |
| 2022 | 4 | 1 |
| 2023 | 1 | 3 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for the production of a rubber compound used for the manufacture of an article made from rubber or a pneumatic tire technical sector31 Mar 2026US 12,589,523 B2
- Apparatus for dispensing a composition14 Oct 2025US 12,441,044 B23M Innovative Properties Company
- Kneading method for use with kneading apparatus with first and second extruders2 Sep 2025US 12,403,628 B2HSP Technologies Inc.
- Kneading apparatus with first and second extruders31 Jan 2023US 11,565,440 B2HSP Technologies Inc.
- Preparation method for thermoplastic polyurethane micro air bag elastomer material18 Oct 2022US 11,472,084 B2Nantong De New Material Co., Ltd.
- Temperature control device for a plasticizing screw and/or a plasticizing cylinder of a plasticizing unit11 Jun 2026US 2026/0158722 A1
- Material extrusion mechanism and molding machine16 Apr 2026US 2026/0102970 A1Seiko Epson Corporation
- Extruder, Extruder Screw, and Method for Extruding31 Jul 2025US 2025/0242535 A1Irwin Research and Development, Inc.
- Extruder mixer, extruder mixing section, extruder system and methods of use thereof for mixing of polymers15 Aug 2024US 2024/0269909 A1Randcastle Extrusion Systems, Inc.
- Extruder for extruding an electrically insulating layer comprising an extrusion screw having a liquid injection channel18 Apr 2024US 2024/0127985 A1
Most cited
By later US patents
- Method for the extrusion of thermoplastic material composites40US 4,302,409 AUnion Carbide Corporation · 1981
- Adjustable plug seal mechanism for heat transfer zone separation in hollow screws for extrusion machines28US 4,355,905 AThe Dow Chemical Company · 1982
- Rotor zone cooling apparatus for rotors in continuous mixers of plastic materials24US 5,180,225 AFarrel Corporation · 1993
- Preheating screw21US 5,547,277 AKlockner-Humboldt-Deutz Aktiengesellschaft · 1996
- Apparatus for continuously processing rubber, elastomers, plastics and like materials which can be vulcanized or cross-linked18US 4,365,946 AHermann Berstorff Maschinenbau GmbH · 1982