B21L 3/00
Making chains or chain links by bending the chain links or link
Official title: Making chains or chain links by bending the chain links or link parts and subsequently welding or soldering the abutting ends (B21L7/00 takes precedence)
B21L3/00 (Making chains or chain links by bending the chain links or link) appears on 33 US grants and 14 published applications in this corpus.
Search patents in B21L- Granted patents
- 33
- Published applications
- 14
- Assignees
- 26
- Inventors
- 45
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Laser weldable sterling alloy17 Feb 2026US 12,551,942 B2James Avery Craftsman, Inc.
- Laser weldable sterling alloy4 Feb 2025US 12,214,416 B2James Avery Craftsman, Inc.
- Method for producing gourmette jewellery articles24 Dec 2024US 12,172,205 B2Marco Bicego S.P.A.
- Chain consisting of oval profile chain links, and method for producing a chain of this type26 Aug 2014US 8,813,468 B2pewag austria GmbH
- Method for producing welded round and profile chains, chain links for a round or profile chain and round or profile chain made of chain links of said kind29 May 2012US 8,186,141 B2Technische Universitaet Graz
- Laser weldable sterling alloy1 Oct 2026US 2026/0295657 A1James Avery Craftsman, Inc.
- Chain link and method for producing a chain link1 Jan 2026US 2026/0002578 A1Thiele GmbH & Co.KG
- Laser weldable sterling alloy30 Jan 2025US 2025/0033110 A1James Avery Craftsman, Inc.
- Method and Apparatus for Chain Welding24 Oct 2024US 2024/0351095 A1
- Method for producing gourmette jewellery articles12 Sep 2024US 2024/0300006 A1Marco Bicego S.P.A.
Most cited
By later US patents
- Interlaced compositions and methods of production54US 7,332,641 B2ClozeX Medical, LLC · 2008
- Method and apparatus for the successive welding of consecutive chain links8US 4,012,618 AMeyer, Roth & Pastor Maschinenfabrik GmbH · 1977
- Method of making one-way chain8US 7,310,934 B1Peerless Chain Company · 2007
- Butt welding apparatus7US 4,075,451 AMeyer, Roth & Pastor Maschinenfabrik GmbH · 1978
- Welding method and apparatus suitable for forming links in jewelry7US 4,453,072 ACreative Fastening Methods, Inc. · 1984