E01C 19/004
Devices for guiding or controlling the machines along a predetermined path
Official title: {Devices for guiding or controlling the machines along a predetermined path (for graders or bulldozers E02F3/841; for other soil-shifting machines E02F9/2045)}
E01C19/004 (Devices for guiding or controlling the machines along a predetermined path) appears on 481 US grants and 466 published applications in this corpus.
Search patents in E01C- Granted patents
- 481
- Published applications
- 466
- Assignees
- 132
- Inventors
- 653
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 11 | 0 |
| 1995 | 4 | 0 |
| 1996 | 12 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 0 |
| 2002 | 4 | 8 |
| 2003 | 6 | 5 |
| 2004 | 7 | 11 |
| 2005 | 8 | 5 |
| 2006 | 5 | 10 |
| 2007 | 7 | 12 |
| 2008 | 4 | 7 |
| 2009 | 7 | 11 |
| 2010 | 9 | 7 |
| 2011 | 13 | 12 |
| 2012 | 4 | 9 |
| 2013 | 5 | 11 |
| 2014 | 15 | 17 |
| 2015 | 17 | 17 |
| 2016 | 23 | 33 |
| 2017 | 29 | 24 |
| 2018 | 23 | 20 |
| 2019 | 20 | 23 |
| 2020 | 21 | 33 |
| 2021 | 23 | 40 |
| 2022 | 26 | 33 |
| 2023 | 38 | 38 |
| 2024 | 22 | 30 |
| 2025 | 24 | 33 |
| 2026 | 25 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for automatically guiding a road construction machine8 Sep 2026US 12,729,490 B2Roadtec, Inc.
- Compactor path planning based on edge type25 Aug 2026US 12,716,180 B2Caterpillar Paving Products Inc.
- Leveling controller adaption by ground profile analysis21 Jul 2026US 12,686,978 B2Joseph Voegele AG
- Laser-controlled truss screed apparatus30 Jun 2026US 12,668,932 B2
- Transport vehicle positioning for paving train machines2 Jun 2026US 12,644,233 B2Caterpillar Paving Products Inc.
- Differential milling and paving17 Sep 2026US 2026/0275660 A1Wirtgen GmbH
- Machine, system and method for road construction13 Aug 2026US 2026/0234877 A1Idaho Asphalt Supply, Inc.
- Grading attachment23 Jul 2026US 2026/0210073 A1Ligchine International Corporation
- Drive-in boom screed23 Jul 2026US 2026/0210135 A1Ligchine International Corporation
- Plausibility check16 Jul 2026US 2026/0204109 A1Wirtgen GmbH
Most cited
By later US patents
- Method and apparatus for establishing a perimeter defining an area to be traversed by a mobile machine227US 6,112,143 ACaterpillar Inc. · 2000
- Method and apparatus for real-time monitoring and coordination of multiple geography altering machines on a work site223US 5,646,844 ACaterpillar Inc. · 1997
- Method and apparatus for operating geography-altering machinery relative to a work site154US 5,631,658 ACaterpillar Inc. · 1997
- Position referencing, measuring and paving method and apparatus for a profiler and paver137US 5,549,412 ABlaw-Knox Construction Equipment Corporation · 1996
- Paver with material supply and mat grade and slope quality control apparatus and method116US 5,356,238 ACedarapids, Inc. · 1994