B21D 31/04
Expanding other than provided for in groups b21d1/00 - b21d28/00
Official title: Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal (B21D47/00 takes precedence; enlarging tube ends B21D41/02)
B21D31/04 (Expanding other than provided for in groups b21d1/00 - b21d28/00) appears on 195 US grants and 125 published applications in this corpus.
Search patents in B21D- Granted patents
- 195
- Published applications
- 125
- Assignees
- 118
- Inventors
- 320
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 0 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 6 |
| 2002 | 7 | 4 |
| 2003 | 5 | 6 |
| 2004 | 8 | 9 |
| 2005 | 8 | 4 |
| 2006 | 3 | 3 |
| 2007 | 1 | 4 |
| 2008 | 2 | 5 |
| 2009 | 1 | 4 |
| 2010 | 2 | 3 |
| 2011 | 2 | 6 |
| 2012 | 1 | 6 |
| 2013 | 4 | 10 |
| 2014 | 3 | 6 |
| 2015 | 7 | 8 |
| 2016 | 5 | 1 |
| 2017 | 6 | 2 |
| 2018 | 1 | 8 |
| 2019 | 4 | 6 |
| 2020 | 4 | 6 |
| 2021 | 3 | 7 |
| 2022 | 4 | 2 |
| 2023 | 8 | 4 |
| 2024 | 1 | 1 |
| 2025 | 3 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Container and method for producing a container15 Jul 2025US 12,358,684 B2
- Metal band as inlay for edge-protection strips and method for production of said metal band17 Jun 2025US 12,330,568 B2Bfc Fahrzeugteile GmbH
- Inductively heatable aerosol-generating article, method for manufacturing such an article and an apparatus for manufacturing a susceptor of such an article13 May 2025US 12,295,405 B2Philip Morris Products S. A.
- Mesh container and method for producing a mesh container29 Oct 2024US 12,129,091 B2
- Method of manufacturing a heat-humidity exchange plate of an enthalpy air-to-air exchanger26 Dec 2023US 11,850,651 B2RECUTECH s.r.o.
- Expanding apparatus for manufacturing micro-expanded metal mesh foil sheets23 Jul 2026US 2026/0208254 A1ACS Industries, Inc.
- Expanding blade for use in manufacturing micro-expanded metal mesh foils and methods of fabricating the same23 Jul 2026US 2026/0208255 A1ACS Industries, Inc.
- Devices for performing wireless sensing and methods of operating the same30 Oct 2025US 2025/0338162 A1Huawei Technologies Co., Ltd.
- Mesh container and method for producing a mesh container6 Feb 2025US 2025/0042604 A1Elfa International AB
- Building profile as well as method and installations for manufacturing a building profile28 Nov 2024US 2024/0392575 A1Bfc Fahrzeugteile GmbH
Most cited
By later US patents
- Composite packaging material having an expanded sheet with a separator sheet104US 5,688,578 A1997
- Metal pipe expander94US 6,334,351 B12002
- Coining expanded metal positive lead-acid battery grids66US 3,947,936 AGeneral Motors Corporation · 1976
- Apparatus for making expanded metal lead-acid battery grids56US 3,945,097 AGeneral Motors Corporation · 1976
- Method and apparatus for making continuous grids for lead acid batteries55US 4,305,187 AYuasa Battery Co., Ltd. · 1981