E01C 23/06
Devices or arrangements for working the finished surface
Official title: Devices or arrangements for working the finished surface (working freshly laid paving E01C19/42 - E01C19/44, E01C23/02; mining picks E21C35/18); Devices for repairing {or reconditioning} the surface of damaged paving; {Recycling in place or on the road}
E01C23/06 (Devices or arrangements for working the finished surface) appears on 2,042 US grants and 1,714 published applications in this corpus.
Search patents in E01C- Granted patents
- 2,042
- Published applications
- 1,714
- Assignees
- 593
- Inventors
- 2,287
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 9 | 0 |
| 1978 | 14 | 0 |
| 1979 | 11 | 0 |
| 1980 | 17 | 0 |
| 1981 | 18 | 0 |
| 1982 | 24 | 0 |
| 1983 | 14 | 0 |
| 1984 | 15 | 0 |
| 1985 | 18 | 0 |
| 1986 | 23 | 0 |
| 1987 | 38 | 0 |
| 1988 | 42 | 0 |
| 1989 | 38 | 0 |
| 1990 | 35 | 0 |
| 1991 | 20 | 0 |
| 1992 | 20 | 0 |
| 1993 | 26 | 0 |
| 1994 | 21 | 0 |
| 1995 | 27 | 0 |
| 1996 | 22 | 0 |
| 1997 | 23 | 0 |
| 1998 | 18 | 0 |
| 1999 | 24 | 0 |
| 2000 | 23 | 0 |
| 2001 | 24 | 7 |
| 2002 | 26 | 20 |
| 2003 | 29 | 29 |
| 2004 | 22 | 26 |
| 2005 | 14 | 23 |
| 2006 | 27 | 38 |
| 2007 | 19 | 27 |
| 2008 | 26 | 41 |
| 2009 | 20 | 34 |
| 2010 | 29 | 37 |
| 2011 | 33 | 53 |
| 2012 | 38 | 48 |
| 2013 | 42 | 80 |
| 2014 | 63 | 96 |
| 2015 | 92 | 80 |
| 2016 | 82 | 105 |
| 2017 | 69 | 121 |
| 2018 | 99 | 108 |
| 2019 | 149 | 143 |
| 2020 | 116 | 107 |
| 2021 | 106 | 125 |
| 2022 | 85 | 95 |
| 2023 | 109 | 105 |
| 2024 | 69 | 64 |
| 2025 | 55 | 53 |
| 2026 | 48 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E01C 23/08For roughening or patterning1,107
- E01C 23/12For taking-up, tearing-up, or full-depth breaking-up paving615
- E01C 23/09For forming cuts, grooves, or recesses395
- E01C 23/065Recycling in place or on the road, i.e. hot or cold reprocessing268
- E01C 23/07Apparatus combining measurement of the surface configuration of paving with application of131
- E01C 23/10For raising or levelling sunken paving68
Recent patents
- Predominantly electrically operated earth working machine29 Sep 2026US 12,747,547 B2Wirtgen GmbH
- Robotic maintenance vehicle and modules29 Sep 2026US 12,747,551 B2Rmv Leasing LLC
- Milling attachment15 Sep 2026US 12,735,850 B2Wirtgen GmbH
- Ground milling machine, in particular road milling machine, stabilizer or recycler, method for moving a ground milling machine in a direction up to 90º transverse to a longitudinal machine direction and method for positioning a ground milling machine for maintenance works and/or for transport8 Sep 2026US 12,728,919 B2BOMAG GmbH
- System and method for automatically guiding a road construction machine8 Sep 2026US 12,729,490 B2Roadtec, Inc.
- Method of processing roadway material to prevent or reduce cracking and/or deterioration8 Oct 2026US 2026/0308052 A1
- Hinge assembly for undercarriage system of work machine1 Oct 2026US 2026/0296539 A1Caterpillar Paving Products Inc.
- Material removal manufacture, assembly, and method of assembly1 Oct 2026US 2026/0297868 A1Dynatech Systems, Inc.
- Rolling Wedge Cutter Drum1 Oct 2026US 2026/0297869 A1
- Stabilizer and methods for controlling a stabilizer24 Sep 2026US 2026/0286627 A1Wirtgen GmbH
Most cited
By later US patents
- Rotary cutter for a road planer151US 4,006,936 ADresser Industries, Inc. · 1977
- Methods and apparatus for mobile additive manufacturing of advanced structures and roadways147US 9,724,877 B22017
- Methods and apparatus for mobile additive manufacturing121US 10,201,932 B22019
- Methods and apparatus for mobile additive manufacturing120US 9,987,792 B22018
- Roadway planing apparatus104US 4,325,580 ACMI Corporation · 1982