E01F 9/50
Road surface markings
Official title: Road surface markings; Kerbs or road edgings, specially adapted for alerting road users (for redirecting vehicles E01F15/00)
E01F9/50 (Road surface markings) appears on 1,101 US grants and 806 published applications in this corpus.
Search patents in E01F- Granted patents
- 1,101
- Published applications
- 806
- Assignees
- 399
- Inventors
- 1,656
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 13 | 0 |
| 1978 | 21 | 0 |
| 1979 | 12 | 0 |
| 1980 | 16 | 0 |
| 1981 | 11 | 0 |
| 1982 | 10 | 0 |
| 1983 | 13 | 0 |
| 1984 | 11 | 0 |
| 1985 | 8 | 0 |
| 1986 | 16 | 0 |
| 1987 | 20 | 0 |
| 1988 | 14 | 0 |
| 1989 | 19 | 0 |
| 1990 | 14 | 0 |
| 1991 | 24 | 0 |
| 1992 | 22 | 0 |
| 1993 | 13 | 0 |
| 1994 | 18 | 0 |
| 1995 | 40 | 0 |
| 1996 | 23 | 0 |
| 1997 | 27 | 0 |
| 1998 | 32 | 0 |
| 1999 | 34 | 0 |
| 2000 | 30 | 0 |
| 2001 | 28 | 9 |
| 2002 | 27 | 32 |
| 2003 | 30 | 36 |
| 2004 | 21 | 33 |
| 2005 | 25 | 37 |
| 2006 | 20 | 30 |
| 2007 | 18 | 26 |
| 2008 | 12 | 29 |
| 2009 | 16 | 25 |
| 2010 | 15 | 27 |
| 2011 | 13 | 24 |
| 2012 | 18 | 18 |
| 2013 | 15 | 20 |
| 2014 | 13 | 28 |
| 2015 | 15 | 33 |
| 2016 | 25 | 37 |
| 2017 | 30 | 38 |
| 2018 | 20 | 39 |
| 2019 | 36 | 42 |
| 2020 | 48 | 54 |
| 2021 | 34 | 45 |
| 2022 | 38 | 42 |
| 2023 | 28 | 34 |
| 2024 | 33 | 28 |
| 2025 | 28 | 26 |
| 2026 | 13 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for decoding information6 Oct 2026US 12,755,116 B2TORC Robotics, Inc.
- Congestion relief using dynamic lighted road lane markings30 Jun 2026US 12,670,785 B2
- Panel for a paver construction30 Jun 2026US D1,132,466 S1Airlite Plastics Co. · Design
- Sensor arrays, methods, systems and devices16 Jun 2026US 12,658,029 B2Metrocount Pty Ltd
- Method for producing a photoluminescent composition, photoluminescent composition obtained and method for maintaining luminance2 Jun 2026US 12,644,005 B2Olikrom
- System and method for providing traffic congestion relief using dynamic lighted road lane markings24 Sep 2026US 2026/0290157 A1
- Sensor arrays, methods, systems and devices17 Sep 2026US 2026/0279192 A1
- Active stud configured to provide omnidirectional light output27 Aug 2026US 2026/0250918 A1Clearview Intelligence Ltd.
- A method for floating microspheres in a (meth)acrylic polyurethane copolymer and articles thereof20 Aug 2026US 2026/0242615 A13M Innovative Properties Company
- Retroreflectors providing information encoded in reflected non-visible laser while retaining visible light safety properties20 Aug 2026US 2026/0243931 A1Lighthouse Technology Group Inc.
Most cited
By later US patents
- Integrally formed linear light strip with light emitting diodes362US 5,848,837 AStanTech · 1998
- Integrally formed linear light strip with light emitting diodes207US 5,927,845 AStanTech · 1999
- Embedded led lighting system198US 6,354,714 B12002
- Inductively powered lamp unit198US 6,459,218 B2Auckland Uniservices Limited · 2002
- Highly efficient LED lamp178US 6,814,470 B2Farlight LLC · 2004