B25D 2250/371
Use of springs
B25D2250/371 (Use of springs) appears on 229 US grants and 285 published applications in this corpus.
Search patents in B25D- Granted patents
- 229
- Published applications
- 285
- Assignees
- 81
- Inventors
- 391
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 3 |
| 2003 | 2 | 4 |
| 2004 | 4 | 3 |
| 2005 | 2 | 9 |
| 2006 | 6 | 11 |
| 2007 | 2 | 14 |
| 2008 | 8 | 16 |
| 2009 | 13 | 17 |
| 2010 | 9 | 17 |
| 2011 | 12 | 15 |
| 2012 | 16 | 16 |
| 2013 | 12 | 11 |
| 2014 | 7 | 7 |
| 2015 | 6 | 13 |
| 2016 | 9 | 14 |
| 2017 | 9 | 9 |
| 2018 | 15 | 13 |
| 2019 | 8 | 11 |
| 2020 | 12 | 6 |
| 2021 | 11 | 14 |
| 2022 | 4 | 16 |
| 2023 | 8 | 12 |
| 2024 | 16 | 14 |
| 2025 | 18 | 10 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Striking tool6 Oct 2026US 12,752,412 B2Makita Corporation
- Power tool having a hammer mechanism8 Sep 2026US 12,728,515 B2Makita Corporation
- Transverse axis rotary hammer16 Jun 2026US 12,654,300 B2Milwaukee Electric Tool Corporation
- Power tool having a hammer mechanism14 Apr 2026US 12,601,138 B2Makita Corporation
- Impacting apparatus10 Mar 2026US 12,569,969 B2Tricord Solutions, Inc.
- Percussion tool3 Sep 2026US 2026/0257328 A1Milwaukee Electric Tool Corporation
- Demolition Hammer with Two Side Handles30 Jul 2026US 2026/0216854 A1Robert Bosch GmbH
- Drive cylinder unit for a power tool, power tool21 May 2026US 2026/0138254 A1Hilti Aktiengesellschaft
- Systems and methods for battery biasing arrangements for a power tool14 May 2026US 2026/0135222 A1Milwaukee Electric Tool Corporation
- Impacting Device with Long Adjustable Stroke Length, Enhanced Safety Features, and a Reciprocating Barrel Cam Mechanism26 Mar 2026US 2026/0084277 A1
Most cited
By later US patents
- Vibration insulation device for handle of vibratory machine68US 4,282,938 AYokosuka Boat Kabushiki Kaisha · 1981
- Impact power tool47US 7,383,895 B2Makita Corporation · 2008
- Power tool44US 7,252,157 B2Makita Corporation · 2007
- Power tool housing43US 7,331,408 B2Black & Decker Inc. · 2008
- Device for driving a drilling and/or impacting tool38US 4,726,430 ASkil Corporation · 1988