A63F 2009/0075
Towers of hanoi
Official title: {Towers of Hanoi}
A63F2009/0075 (Towers of hanoi) appears on 8 US grants and 9 published applications in this corpus.
Search patents in A63F- Granted patents
- 8
- Published applications
- 9
- Assignees
- 4
- Inventors
- 20
- Latest grant
- 9 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Child play puzzle9 Jan 2024US 11,865,466 B2Lovevery, Inc.
- System and method for deriving spatial sequence of multiple objects on an interactive surface30 Jul 2019US 10,365,361 B2
- Stacking discs removal game29 May 2012US 8,186,680 B2
- Stacking puzzle and method for playing same28 Jul 2009US 7,566,057 B2
- English letter coding method and a small keypad7 Aug 2007US 7,253,749 B2XuXu Ltd.
- Child play puzzle6 Apr 2023US 2023/0104388 A1Lovevery, Inc.
- Shapes stack up game19 Dec 2019US 2019/0381394 A1
- Game piece15 Nov 2018US 2018/0326296 A1
- System and method for deriving spatial sequence of multiple objects on an interactive surface27 Sep 2018US 2018/0275266 A1
- Element alignment game and method for playing same28 Aug 2014US 2014/0239588 A1Plasmart Co. Ltd.
Most cited
By later US patents
- Multiple-post toy stacker assembly21US 4,485,585 AChildcraft Education Corporation · 1984
- Strategy game16US 5,560,605 A1996
- Stacking puzzle and method for playing same8US 7,566,057 B22009
- Towers of hanoi game5US 5,992,851 A1999
- English letter coding method and a small keypad1US 7,253,749 B2XuXu Ltd. · 2007