E21F 15/10
Hydraulic or pneumatic filling-up machines
E21F15/10 (Hydraulic or pneumatic filling-up machines) appears on 8 US grants and 6 published applications in this corpus.
Search patents in E21F- Granted patents
- 8
- Published applications
- 6
- Assignees
- 10
- Inventors
- 30
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 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 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for subterranean energy storage8 Apr 2025US 12,270,368 B2
- Monitoring device for deformation of locked patch crack of rock slope and arrangement method3 May 2022US 11,319,810 B1China University of Geosciences (Wuhan)
- Method of spray application, and spray apparatus, for bentonite material25 Jun 2013US 8,470,406 B2Kajima Corporation
- System and method for aggregate disposal5 Feb 2013US 8,366,349 B2Beachner Construction Company, Inc.
- Remote mine seal spray nozzle assembly, system and methods of use23 Mar 2010US 7,682,107 B2Howard Concrete Pumping, Inc.
- Methods, devices, and storage medium for synchronous treatment of water hazard and subsidence25 Jun 2026US 2026/0176970 A1China University of Mining and Technology, Beijing
- Systems and methods for subterranean energy storage3 Aug 2023US 2023/0243330 A1
- Method and apparatus for paste backfill17 Jan 2019US 2019/0017381 A1Outotec (Finland) Oy
- Method of spray application, and spray apparatus, for bentonite material8 Oct 2009US 2009/0252881 A1Kajima Corporation
- System And Method For Aggregate Disposal26 Jun 2008US 2008/0152432 A1Beachner Construction Company, Inc.
Most cited
By later US patents
- System and method for aggregate disposal65US 8,366,349 B2Beachner Construction Company, Inc. · 2013
- Method and device for continuous transporting powdered, fine-grained and coarse-grained materials9US 4,493,593 AFerroplast Gesellschaft fur Metall- und Kunststoffepzeucnisse mbH · 1985
- Remote mine seal spray nozzle assembly, system and methods of use8US 7,682,107 B2Howard Concrete Pumping, Inc. · 2010
- Pneumatic stowing apparatus3US 4,163,582 ABergwerksverband GmbH · 1979
- Method of spray application, and spray apparatus, for bentonite material1US 8,470,406 B2Kajima Corporation · 2013