E01C 19/201
With driven loosening, discharging or spreading parts
Official title: {with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels (E01C19/205 takes precedence)}
E01C19/201 (With driven loosening, discharging or spreading parts) appears on 282 US grants and 206 published applications in this corpus.
Search patents in E01C- Granted patents
- 282
- Published applications
- 206
- Assignees
- 125
- Inventors
- 422
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 8 | 0 |
| 1984 | 1 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 2 |
| 2002 | 6 | 4 |
| 2003 | 5 | 12 |
| 2004 | 10 | 8 |
| 2005 | 6 | 12 |
| 2006 | 5 | 8 |
| 2007 | 2 | 2 |
| 2008 | 2 | 4 |
| 2009 | 3 | 5 |
| 2010 | 5 | 7 |
| 2011 | 7 | 12 |
| 2012 | 2 | 8 |
| 2013 | 12 | 9 |
| 2014 | 11 | 7 |
| 2015 | 8 | 10 |
| 2016 | 10 | 10 |
| 2017 | 13 | 12 |
| 2018 | 7 | 15 |
| 2019 | 12 | 11 |
| 2020 | 15 | 17 |
| 2021 | 8 | 9 |
| 2022 | 6 | 5 |
| 2023 | 8 | 6 |
| 2024 | 6 | 6 |
| 2025 | 4 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Road paver21 Apr 2026US 12,606,965 B2Ningbo Roaby Technology Industrial Group Co., Ltd.
- Modular dual wall spreader with liquid storage tanks3 Jun 2025US 12,318,802 B2Oy Hilltip AB
- Systems and methods for automating the application of friction-modifying coatings27 May 2025US 12,312,753 B2The Truesdell Corporation
- Aggregate spreading device with spreader system13 May 2025US 12,297,606 B2Ligchine International Corporation
- Cordless electrically-powered concrete screed4 Mar 2025US 12,241,210 B2Curb Roller LLC
- Material Storage and Spreading System12 Feb 2026US 2026/0043206 A1Apply Right, LLC
- Spreader for Spreading Spreadable Material and Spreading Chute2 Oct 2025US 2025/0301942 A1Amazonen-Werke H. Dreyer SE & Co. KG
- Uniform spreading control system25 Sep 2025US 2025/0297432 A1Dartpoint Tech. Co., Ltd.
- Topping spreader for dispensing shake-on aggregate composition onto a concrete surface21 Aug 2025US 2025/0263895 A1Somero Enterprises, Inc.
- Asphalt finisher and power supply system for asphalt finisher9 Jan 2025US 2025/0012020 A1Sumitomo Construction Machinery Co., Ltd.
Most cited
By later US patents
- Mount and feeder arrangement for a precision placement spreader97US 6,220,532 B1The Louis Berkman Company · 2001
- Material distributing apparatus95US 5,286,158 A1994
- Spreader assembly89US 6,089,478 ATrynex, Inc. · 2000
- Spreader control85US 4,523,280 ADickey-john Corporation · 1985
- Precision placement spreader67US 5,947,391 AThe Louis Berkman Company · 1999