B65G 2201/0291
Pig used in pipe conveyors
Official title: Pig used in pipe conveyors, e.g. a Molch
B65G2201/0291 (Pig used in pipe conveyors) appears on 14 US grants and 10 published applications in this corpus.
Search patents in B65G- Granted patents
- 14
- Published applications
- 10
- Assignees
- 12
- Inventors
- 37
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 3 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 2 |
| 2021 | 2 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid-floated conveying device6 Oct 2026US 12,753,027 B2
- Method for minimizing material mixing during transitions in a material processing system31 Jan 2023US 11,566,743 B2Tropicana Products, Inc.
- Method for minimizing material mixing during transitions in a material processing system18 Jan 2022US 11,226,062 B2Tropicana Products, Inc.
- Interlocking teeth for strengthening pinned connection between knuckle-jointed lance segments7 Dec 2021US 11,192,154 B2Thomas Engineering Solutions & Consulting, LLC
- Automated pipeline pig handling system23 Mar 2021US 10,955,082 B2Saudi Arabian Oil Company
- Fluid-floated conveying device15 May 2025US 2025/0153957 A1
- Method for Minimizing Material Mixing During Transitions in a Material Processing System31 Mar 2022US 2022/0099234 A1Tropicana Products, Inc.
- Method for conveying a working medium24 Dec 2020US 2020/0398297 A1Eisenmann LacTec GmbH
- Method for Minimizing Material Mixing During Transitions in a Material Processing System20 Aug 2020US 2020/0263825 A1Tropicana Products, Inc.
- Automated pipeline pig handling system26 Sep 2019US 2019/0293226 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Horizontal type hydrohoist13US 3,938,912 AHitachi, Ltd. · 1976
- Method of sampling solid materials and sampling system to execute the method10US 5,056,962 AKyowa Hakko Kogyo Co., Ltd. Kabushiki Kaisha Matsui Seisakusho · 1991
- High density pneumatic transport method for use in powder or granular material and system for practicing the method7US 4,856,941 AKabushikikaisha Matsui Seisakusho · 1989
- Transport plug for use in pneumatically transporting solid materials and a pneumatic transport method employing the transport plug5US 5,211,514 AKabushikikaisha Matsui Seisakusho · 1993
- Automated pipeline pig handling system4US 10,955,082 B2Saudi Arabian Oil Company · 2021