B23P 19/048
Springs
Official title: {Springs}
B23P19/048 (Springs) appears on 54 US grants and 31 published applications in this corpus.
Search patents in B23P- Granted patents
- 54
- Published applications
- 31
- Assignees
- 41
- Inventors
- 91
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 2 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 5 |
| 2016 | 5 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 4 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 2 |
| 2024 | 1 | 4 |
| 2025 | 2 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of manufacturing shock absorber5 May 2026US 12,618,447 B2Hitachi Astemo, Ltd.
- Snap ring expander27 Jan 2026US 12,533,759 B1Neapco Intellectual Property Holdings, LLC
- Spring compression tool18 Feb 2025US 12,226,862 B2Leidos Industrial Engineers Limited
- Device for mounting spring pieces on machine housing4 Feb 2025US 12,214,456 B2Hengdian Group Innuovo Electric Co., Ltd.
- Biasing member compression fixture15 Oct 2024US 12,115,608 B2Adrian Steel Company
Most cited
By later US patents
- Method and apparatus for forming strings of pocketed springs14US 5,749,133 ASimmons Company · 1998
- Strut compressor13US 4,295,634 AAmmco Tools, Inc. · 1981
- Apparatus for mounting tension springs automatically13US 4,653,185 ATachikawa Spring Co., Ltd. · 1987
- Tension spring takeout device in an automatic tension spring mounting apparatus12US 4,715,114 ATachi-S Co., Ltd. · 1987
- Method of manufacturing spring assembly12US 7,127,792 B2Piolax, Inc. · 2006