B64C 25/66
Convertible alighting gear
Official title: Convertible alighting gear; Combinations of different kinds of ground or like engaging elements
B64C25/66 (Convertible alighting gear) appears on 48 US grants and 40 published applications in this corpus.
Search patents in B64C- Granted patents
- 48
- Published applications
- 40
- Assignees
- 32
- Inventors
- 72
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 3 | 3 |
| 2014 | 1 | 3 |
| 2015 | 1 | 0 |
| 2016 | 0 | 3 |
| 2017 | 2 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 9 |
| 2020 | 2 | 6 |
| 2021 | 6 | 0 |
| 2022 | 4 | 3 |
| 2023 | 2 | 0 |
| 2024 | 2 | 1 |
| 2025 | 4 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Seaplane with attachable float frame comprising auxiliary fuel tanks14 Apr 2026US 12,600,472 B2Cub Crafters, Inc.
- Convertible drive system24 Jun 2025US 12,337,954 B1Hyalta Aeronautics, Inc.
- Swivel nose caster for aircraft floats17 Jun 2025US 12,330,775 B1
- Notched hydroplane surface for aircraft floats10 Jun 2025US 12,325,513 B1
- Amphibious aircraft, landing gear, and method7 Jan 2025US 12,187,415 B2E. B. Robinson Ltd.
- Rotorcraft with a skid-type landing gear or a wheel-type landing gear24 Sep 2026US 2026/0285479 A1Airbus Helicopters Deutschland GmbH
- Aircraft and method of flying said aircraft10 Sep 2026US 2026/0264850 A1Blainjett Aviation LLC
- Hydrogen containment airplane float technology13 Aug 2026US 2026/0233830 A1Wipaire, Inc.
- Seaplane with attachable float frame comprising auxiliary fuel tanks20 Nov 2025US 2025/0353591 A1Cub Crafters, Inc.
- Rotorcraft and rotor blade part10 Oct 2024US 2024/0336358 A1Aeronext Inc.
Most cited
By later US patents
- Multi-purpose aircraft88US 5,645,250 A1997
- Multi-purpose aircraft38US 6,098,927 A2000
- Multi-purpose aircraft20US 5,850,990 A1998
- VTOL aircraft with movable undercarriage16US 5,056,737 AGEC-Marconi Limited · 1991
- Device for increasing the stability of helicopters placed on board and set down, having a tricycle landing gear, and helicopter equipped with such a device14US 5,209,431 AAerospatiale Societe Nationale Industrielle · 1993