F01B 29/12
Steam engines
Official title: Steam engines (toy steam engines A63H29/16)
F01B29/12 (Steam engines) appears on 23 US grants and 12 published applications in this corpus.
Search patents in F01B- Granted patents
- 23
- Published applications
- 12
- Assignees
- 9
- Inventors
- 33
- Latest grant
- 2 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 3 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Combined circulating system of micro gas turbine, transportation means and charging system2 Jan 2024US 11,859,494 B2Technologies' Xanadu of Resonatory-Solar-Systemed Co., Ltd.
- Pressure controlled hydraulic engine11 May 2021US 11,002,296 B2
- Engine with differential evaporation pressures1 Dec 2020US 10,851,733 B2
- Pressure controlled hydraulic engine31 Mar 2020US 10,605,082 B2Koko Krikor Katanjian
- R-θ table apparatus and processing apparatus of internal thread30 Jul 2019US 10,363,597 B2M. H. Center, Ltd.
- Combined circulating system of micro gas turbine, transportation means and charging system13 Oct 2022US 2022/0325665 A1Technologies' Xanadu of Resonatory-Solar-Systemed Co., Ltd.
- Pressure controlled hydraulic engine16 Jul 2020US 2020/0224535 A1
- Pressure controlled hydraulic engine19 Jul 2018US 2018/0202292 A1Koko Krikor Katanjian
- Engine with differential evaporation pressures7 Dec 2017US 2017/0350348 A1
- Parallel motion heat energy power machine and working method thereof2 Mar 2017US 2017/0058701 A1
Most cited
By later US patents
- Hydraulic external heat source engine36US 4,747,271 AVHF Corporation · 1988
- Combination internal combustion and steam engine24US 4,433,548 A1984
- Steam engine12US 3,990,238 A1976
- Combined internal combustion and steam engine11US 4,322,950 A1982
- Combustion and steam engine system and methods9US 5,803,022 A1998