B65G 21/20
Means incorporated in, or attached to, framework or housings for guiding load-carriers
Official title: Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces (arrangements for supporting belts B65G15/60; rollers or roller arrangements B65G39/00)
B65G21/20 (Means incorporated in, or attached to, framework or housings for guiding load-carriers) appears on 1,225 US grants and 938 published applications in this corpus.
Search patents in B65G- Granted patents
- 1,225
- Published applications
- 938
- Assignees
- 726
- Inventors
- 2,147
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 11 | 0 |
| 1981 | 5 | 0 |
| 1982 | 11 | 0 |
| 1983 | 6 | 0 |
| 1984 | 10 | 0 |
| 1985 | 13 | 0 |
| 1986 | 6 | 0 |
| 1987 | 11 | 0 |
| 1988 | 16 | 0 |
| 1989 | 15 | 0 |
| 1990 | 15 | 0 |
| 1991 | 23 | 0 |
| 1992 | 25 | 0 |
| 1993 | 16 | 0 |
| 1994 | 18 | 0 |
| 1995 | 17 | 0 |
| 1996 | 13 | 0 |
| 1997 | 22 | 0 |
| 1998 | 26 | 0 |
| 1999 | 18 | 0 |
| 2000 | 29 | 0 |
| 2001 | 32 | 10 |
| 2002 | 25 | 23 |
| 2003 | 37 | 18 |
| 2004 | 11 | 26 |
| 2005 | 18 | 23 |
| 2006 | 25 | 25 |
| 2007 | 16 | 23 |
| 2008 | 15 | 25 |
| 2009 | 20 | 42 |
| 2010 | 32 | 27 |
| 2011 | 24 | 22 |
| 2012 | 16 | 31 |
| 2013 | 22 | 34 |
| 2014 | 39 | 28 |
| 2015 | 35 | 39 |
| 2016 | 37 | 42 |
| 2017 | 50 | 45 |
| 2018 | 42 | 49 |
| 2019 | 53 | 42 |
| 2020 | 44 | 65 |
| 2021 | 60 | 56 |
| 2022 | 56 | 60 |
| 2023 | 50 | 57 |
| 2024 | 53 | 38 |
| 2025 | 32 | 50 |
| 2026 | 31 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Horizontal conveyor, preferably for transporting pallets loaded with goods6 Oct 2026US 12,753,013 B2Nedcon B.V.
- Systems for conveying articles29 Sep 2026US 12,747,108 B2Syntegon Telstar Technologies S.L.U.
- Automatic lane adjustment system29 Sep 2026US 12,747,109 B2Illinois Tool Works Inc.
- Can orientation verification systems and methods29 Sep 2026US 12,747,111 B2Canpack S.A.
- Systems and methods for assisting in object grasping from containers in object processing systems25 Aug 2026US 12,715,711 B2Berkshire Grey Operating Company, Inc.
- Ejection System for Laminated Material Stacker1 Oct 2026US 2026/0296793 A1European Machinery Engineering Projects, S.L.
- Low Friction Magnetic Liner24 Sep 2026US 2026/0285006 A1Buffalo Wire Works Company, Inc.
- Skirtboard liner assemblies3 Sep 2026US 2026/0257863 A1Martin Engineering Company
- Conveyor system3 Sep 2026US 2026/0257867 A1Builders FirstSource, Inc.
- Transport system3 Sep 2026US 2026/0257868 A1Weiss GmbH
Most cited
By later US patents
- Tortilla counter-stacker125US 6,053,695 AITE, Inc. · 2000
- Guide rail system for roller-type conveyors98US 6,830,146 B1Cargotainer Adrian Fabricators, Inc. · 2004
- Two-axis robot for specimen transfer86US 6,843,357 B2Cardinal Health 301, Inc. · 2005
- Conveyor belt side curtains84US 6,328,156 B1Nelson Williams Linings, Inc. · 2001
- Magnetic guiding assembly for yarn packages transported on a textile machine72US 5,295,570 AW. Schlafhorst AG & Co. · 1994