B21F 3/12
Coiling wire into particular forms: of interconnected helical springs
Official title: of interconnected helical springs
B21F3/12 (Coiling wire into particular forms: of interconnected helical springs) appears on 23 US grants and 8 published applications in this corpus.
Search patents in B21F- Granted patents
- 23
- Published applications
- 8
- Assignees
- 11
- Inventors
- 32
- Latest grant
- 26 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Endovascular coil and method for making the same26 Nov 2024US 12,150,649 B2Avantec Vascular Corporation
- Wire forming apparatus28 Feb 2023US 11,590,557 B2Kabushiki Kaisha Itaya Seisaku Sho
- Apparatus and method for manufacturing coil screens23 Oct 2018US 10,105,800 B2Karl Mayer Textilmaschinenfabrik GmbH
- Wire forming apparatus1 Aug 2017US 9,718,114 B2Kabushiki Kaisha Itaya Seisaku Sho
- Coil springs with complex coil configurations, assemblies with coil springs, and related methods1 Mar 2016US 9,273,742 B2Bal Seal Engineering, Inc.
- Dynamic mandrel for inducing stress into an embolic coil9 Jan 2025US 2025/0009360 A1Avantec Vascular Corporation
- Wire forming apparatus7 Oct 2021US 2021/0308738 A1Kabushiki Kaisha Itaya Seisaku Sho
- Endovascular coil and method for making the same25 Mar 2021US 2021/0085334 A1Avantec Vascular Corporation
- Apparatus and method for manufacturing coil screens5 May 2016US 2016/0121440 A1Karl Mayer Textilmaschinenfabrik GmbH
- Wire forming apparatus19 Mar 2015US 2015/0075244 A1Kabushiki Kaisha Itaya Seisaku Sho
Most cited
By later US patents
- Programmable servo-motor quality controlled continuous multiple coil spring forming method and apparatus26US 5,875,664 AL&P Property Management Company · 1999
- Apparatus for producing a continuous flexible tubular conduit22US 4,135,869 ADayco Corporation · 1979
- Method and apparatus for forming a row of spring coils from a continuous length of wire21US 4,112,726 ALeggett & Platt, Incorporated · 1978
- Continuous coil spring forming method17US 5,105,642 AL&P Property Management Company · 1992
- Bedding and seating product having double twist coil spring and method and apparatus for manufacturing the same12US 4,639,957 ALeggett & Platt, Incorporated · 1987