E04H 3/26
Revolving stages
Official title: Revolving stages; Stages able to be lowered
E04H3/26 (Revolving stages) appears on 38 US grants and 30 published applications in this corpus.
Search patents in E04H- Granted patents
- 38
- Published applications
- 30
- Assignees
- 25
- Inventors
- 85
- Latest grant
- 25 Oct 2022
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 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 3 |
| 2015 | 2 | 5 |
| 2016 | 4 | 1 |
| 2017 | 3 | 1 |
| 2018 | 1 | 4 |
| 2019 | 3 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 3 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Systems for releasably securing a platform25 Oct 2022US 11,479,981 B2Hall Labs LLC
- Portable stage system13 Jul 2021US 11,060,308 B2Sico Incorporated
- Systems and methods for an entertainment system6 Oct 2020US 10,794,073 B2Universal City Studios LLC
- Non-linear bearing release for large moveable structures26 Nov 2019US 10,487,874 B2Geiger Gossen Campbell Engineers P.C.
- Rotating performance stage3 Sep 2019US 10,398,990 B2Willowbrook Capital Group, LLC
- Aerial navigation system9 Dec 2021US 2021/0379768 A1Everseen Limited
- Navigation control system for stationary obstacle avoidance9 Dec 2021US 2021/0380237 A1Everseen Limited
- Aerial navigation system9 Dec 2021US 2021/0382502 A1Everseen Limited
- Systems for Releasably Securing a Platform3 Dec 2020US 2020/0378139 A1Hall Labs LLC
- Systems and methods for an entertainment system21 May 2020US 2020/0157829 A1Universal City Studios LLC
Most cited
By later US patents
- Adjustable pedestal trestle for theater stages or the like59US 4,405,116 A1983
- Multi-purpose stadium35US 5,103,600 A1992
- Screen-to-stage and stage-to-screen seamless transition theater30US 6,253,494 B12001
- Platform lift29US 4,600,085 A1986
- Activity floor changing system for multi-activity complex28US 5,365,704 A1994