B66B 9/04
Actuated pneumatically or hydraulically
Official title: actuated pneumatically or hydraulically (platforms for lifting or lowering through short distances B66F7/00)
B66B9/04 (Actuated pneumatically or hydraulically) appears on 159 US grants and 92 published applications in this corpus.
Search patents in B66B- Granted patents
- 159
- Published applications
- 92
- Assignees
- 66
- Inventors
- 228
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 8 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 10 | 5 |
| 2003 | 3 | 4 |
| 2004 | 2 | 1 |
| 2005 | 2 | 3 |
| 2006 | 1 | 1 |
| 2007 | 2 | 4 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 1 | 2 |
| 2011 | 2 | 2 |
| 2012 | 2 | 1 |
| 2013 | 0 | 3 |
| 2014 | 1 | 9 |
| 2015 | 5 | 4 |
| 2016 | 6 | 1 |
| 2017 | 3 | 2 |
| 2018 | 3 | 4 |
| 2019 | 4 | 3 |
| 2020 | 3 | 2 |
| 2021 | 2 | 2 |
| 2022 | 3 | 3 |
| 2023 | 7 | 9 |
| 2024 | 5 | 9 |
| 2025 | 9 | 6 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hoistway mechanics of panoramic vacuum elevator29 Sep 2026US 12,747,136 B2Blissera Corp.
- Apparatus to protect a pneumatic vacuum elevator from an overload condition1 Sep 2026US 12,722,939 B2
- Base ring assembly for a pneumatic vacuum elevator and a method thereof21 Apr 2026US 12,607,220 B2
- Seal assembly for an elevator and a method to operate the same14 Apr 2026US 12,600,600 B2
- Structure for constructing an improved guide pillar system of a pneumatic vacuum elevator27 Jan 2026US 12,534,341 B2
- An airflow controller in a pneumatic vacuum elevator and a method to operate the same8 Oct 2026US 2026/0307943 A1
- Modular elevator systems and methods13 Aug 2026US 2026/0233973 A1Buildz, LLC
- Hydraulic elevator drive system and elevator system comprising a hydraulic elevator drive system6 Aug 2026US 2026/0225856 A1Otis Elevator Company
- An apparatus to protect a pneumatic vacuum elevator from an overload condition2 Jul 2026US 2026/0184537 A1
- A seal assembly for an elevator cabin and a method to operate the same18 Jun 2026US 2026/0167456 A1
Most cited
By later US patents
- Caging seal for hydraulic elevator or the like43US 4,476,772 ACorbett Elevator Manufacturing Co., Inc. · 1984
- Twin post, telescoping jack hydraulic elevator system35US 5,597,987 ADelaware Capital Formation, Inc. · 1997
- Hydraulic platform and level correcting control system33US 5,065,844 AMobil Oil Corporation · 1991
- Pneumatic elevator by depressure26US 5,447,211 A1995
- Hydraulic wheelchair lift26US 5,553,990 A1996