B64C 25/62
Spring shock-absorbers
Official title: Spring shock-absorbers; Springs
B64C25/62 (Spring shock-absorbers) appears on 101 US grants and 99 published applications in this corpus.
Search patents in B64C- Granted patents
- 101
- Published applications
- 99
- Assignees
- 64
- Inventors
- 194
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 6 |
| 2016 | 7 | 11 |
| 2017 | 7 | 7 |
| 2018 | 5 | 4 |
| 2019 | 5 | 5 |
| 2020 | 7 | 10 |
| 2021 | 7 | 7 |
| 2022 | 10 | 7 |
| 2023 | 7 | 12 |
| 2024 | 10 | 9 |
| 2025 | 10 | 6 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Unmanned aerial vehicle1 Sep 2026US 12,722,812 B2Antigravity (Sz) Technology Co., Ltd.
- Landing gear system, weight on wheels system and method for landing or taking-off11 Aug 2026US 12,703,504 B2Pipistrel d.o.o.
- Landing gear add-on energy absorption system9 Jun 2026US 12,649,568 B2Goodrich Corporation
- Landing gear for aircraft7 Apr 2026US 12,595,046 B2Sumitomo Precision Products Co., Ltd.
- Unmanned aerial vehicle13 Jan 2026US 12,522,384 B2Arashi Vision Inc.
- Unmanned aerial vehicle1 Oct 2026US 2026/0296687 A1Antigravity (Sz) Technology Co., Ltd.
- Absorber23 Apr 2026US 2026/0110346 A1Gazi Universitesi
- Unmanned aerial vehicle9 Apr 2026US 2026/0097865 A1Arashi Vision Inc.
- Aircraft landing gear assembly19 Mar 2026US 2026/0077857 A1Airbus Operations GmbH
- Landing gear system, weight on wheels system and method for landing or taking-off12 Feb 2026US 2026/0042548 A1Pipistrel d.o.o.
Most cited
By later US patents
- Energy absorbing landing gear/tail skid including means for indicating the magnitude of impact loads41US 5,927,646 ASikorsky Aircraft Corporation · 1999
- Semi-levered landing gear and auxiliary strut therefor41US 6,182,925 B2The Boeing Company · 2001
- Flexible girder with high energy absorption, and landing gear and tail skid for an aircraft equipped with such a girder34US 4,645,143 AAerospatiale Societe Nationale Industrielle · 1987
- Control system and method for a semi-levered landing gear for an aircraft33US 6,575,405 B2The Boeing Company · 2003
- Laminated mechanical elements26US 4,659,069 A1987