F03G 3/087
Gravity or weight motors
Official title: {Gravity or weight motors (using solid falling bodies F03G3/02; using sand or the like F03G3/04)}
F03G3/087 (Gravity or weight motors) appears on 187 US grants and 235 published applications in this corpus.
Search patents in F03G- Granted patents
- 187
- Published applications
- 235
- Assignees
- 75
- Inventors
- 301
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 3 |
| 2003 | 2 | 4 |
| 2004 | 1 | 4 |
| 2005 | 2 | 5 |
| 2006 | 1 | 7 |
| 2007 | 1 | 6 |
| 2008 | 1 | 3 |
| 2009 | 1 | 3 |
| 2010 | 1 | 4 |
| 2011 | 1 | 9 |
| 2012 | 2 | 7 |
| 2013 | 5 | 8 |
| 2014 | 7 | 13 |
| 2015 | 14 | 9 |
| 2016 | 4 | 8 |
| 2017 | 3 | 5 |
| 2018 | 7 | 4 |
| 2019 | 6 | 8 |
| 2020 | 12 | 12 |
| 2021 | 4 | 9 |
| 2022 | 5 | 14 |
| 2023 | 14 | 19 |
| 2024 | 18 | 30 |
| 2025 | 17 | 26 |
| 2026 | 10 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Energy storage and delivery system and method1 Sep 2026US 12,723,571 B2Energy Vault, Inc.
- Gravitational potential energy storage systems and methods18 Aug 2026US 12,709,307 B2Advanced Rail Energy Storage, LLC
- Gravity battery motor and energy storage system28 Jul 2026US 12,692,846 B2
- Parallel frame type gravity energy storage and transportation system9 Jun 2026US 12,650,112 B2Nantong Weiyike Technical Service Co., Ltd.
- Well-based potential energy conversion systems and methods featuring well-external sensing26 May 2026US 12,640,623 B2Renewell Energy
- Methods of generating electric power and a distributed network of a generator-turbine apparatus having a set of electric generators simultaneously driven by a gravity-force applied and moment imbalanced turbine8 Oct 2026US 2026/0309131 A1
- Distributed Gravity Superposition Energy Collection And Power Generation Device20 Aug 2026US 2026/0243233 A1
- Heat Engine6 Aug 2026US 2026/0226887 A1Invenco Engineering Industries Ltd
- Energy storage and delivery system and method2 Jul 2026US 2026/0185507 A1Energy Vault, Inc.
- Kinetic energy recycling system7 May 2026US 2026/0128648 A1Solution Leader Technology Co., Ltd.
Most cited
By later US patents
- Solar-wind energy conversion system59US 4,311,011 A1982
- Solar-wind energy conversion system55US 4,462,213 A1984
- Energy generating system using differential elevation45US 6,422,016 B12002
- Gravity-assisted rotation device37US 5,372,474 A1994
- Tire inflation system36US 9,151,288 B2Aperia Technologies, Inc. · 2015