B21D 33/00
Special measures in connection with working metal foils
Official title: Special measures in connection with working metal foils, e.g. gold foils (cutting or perforating of metal foil analogous to paper B26)
B21D33/00 (Special measures in connection with working metal foils) appears on 28 US grants and 40 published applications in this corpus.
Search patents in B21D- Granted patents
- 28
- Published applications
- 40
- Assignees
- 27
- Inventors
- 67
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 2 | 2 |
| 2014 | 3 | 3 |
| 2015 | 1 | 4 |
| 2016 | 0 | 4 |
| 2017 | 5 | 4 |
| 2018 | 2 | 1 |
| 2019 | 3 | 2 |
| 2020 | 3 | 2 |
| 2021 | 2 | 1 |
| 2022 | 2 | 1 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
- Preparation of LI and NA foils with {110} or {100} surface texturing14 Oct 2025US 12,444,729 B2The Chinese University of Hong Kong
- Amorphous metal thin strip, laminated core, and amorphous metal thin ribbon punching method7 May 2024US 11,975,377 B2Proterial, Ltd.
- Gold leaf processing device and processing method29 Aug 2023US 11,738,549 B2Me In Gold Co., Ltd.
- Polymers and the use thereof as lubricating agents in the production of alkali metal films27 Sep 2022US 11,453,835 B2Hydro-Quebec
- Crafting dies13 Sep 2022US 11,440,211 B2Crafter's Companion Limited
- Aluminum cup18 Sep 2025US 2025/0289049 A1LumiTerra, Inc.
- Aluminum cup18 Sep 2025US 2025/0289206 A1LumiTerra, Inc.
- Method for producing conical metal objects made of thin sheet metal19 Jun 2025US 2025/0196214 A1Adval Tech Holding AG
- Method for shearing amorphous alloy foils20 Mar 2025US 2025/0091115 A1Komatsuseiki Kosakusho Co., Ltd.
- Method to produce electric motor conductor wires for high frequency25 Jul 2024US 2024/0250590 A1GM Global Technology Operations LLC
Most cited
By later US patents
- Multi-layer packaging foil and method for manufacturing the foil7US 5,946,781 A1999
- Foil configuration device and method4US 8,490,458 B22013
- Processing apparatus fabrication3US 8,464,927 B2JMP Laboratories, Inc. · 2013
- Foil configuring device2US 8,739,593 B22014
- Foil configuration device and method2US 9,114,448 B22015