C08L 2555/34
Recycled or waste materials
Official title: Recycled or waste materials, e.g. reclaimed bitumen, asphalt, roads or pathways, recycled roof coverings or shingles, recycled aggregate, recycled tires, crumb rubber, glass or cullet, fly or fuel ash, or slag
C08L2555/34 (Recycled or waste materials) appears on 234 US grants and 324 published applications in this corpus.
Search patents in C08L- Granted patents
- 234
- Published applications
- 324
- Assignees
- 144
- Inventors
- 476
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 3 |
| 2010 | 2 | 5 |
| 2011 | 5 | 10 |
| 2012 | 6 | 6 |
| 2013 | 4 | 24 |
| 2014 | 11 | 12 |
| 2015 | 15 | 21 |
| 2016 | 11 | 17 |
| 2017 | 14 | 22 |
| 2018 | 17 | 27 |
| 2019 | 14 | 24 |
| 2020 | 17 | 21 |
| 2021 | 16 | 16 |
| 2022 | 19 | 30 |
| 2023 | 24 | 26 |
| 2024 | 25 | 24 |
| 2025 | 16 | 20 |
| 2026 | 11 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sterol in asphalt roofing materials11 Aug 2026US 12,703,796 B2A.L.M. Holding Company
- Bio-agent for extraction of asphaltene from siliceous surfaces4 Aug 2026US 12,698,395 B2Arizona Board of Regents on behalf of Arizona State University
- Recycling of sterol-containing asphalt binder28 Jul 2026US 12,692,395 B2A.L.M. Holding Company
- Rejuvenating compounds in high performance asphalt compositions with high recycled content14 Jul 2026US 12,679,769 B2Cargill, Incorporated
- Bio-based additive for asphalt23 Jun 2026US 12,662,611 B2POET Research, Inc.
- Bio-agent for extraction of asphaltene from siliceous surfaces8 Oct 2026US 2026/0308381 A1
- Cold-mixed cold-laid asphalt mixed pavement material and fabrication method therefor24 Sep 2026US 2026/0286133 A1
- Cracking resistant asphalt binders including high viscosity vacuum tower bottoms material and at least one of a heavy vacuum gas oil or a biomaterial, and related methods20 Aug 2026US 2026/0242285 A1Marathon Petroleum Company LP
- Cracking resistant asphalt binders including hard asphalt, and related methods20 Aug 2026US 2026/0242286 A1Marathon Petroleum Company LP
- Cracking resistant asphalt binders including blend of low viscosity vacuum tower bottoms and bio-resins, and related methods20 Aug 2026US 2026/0242602 A1Marathon Petroleum Company LP
Most cited
By later US patents
- Method and apparatus for recycling roofing shingles as an additive to asphalt paving composition66US 4,706,893 AAstec Industries, Inc. · 1987
- Recycling process for discarded roof shingles42US 8,789,773 B2Crown Iron Works Company · 2014
- Blown corn stillage oil36US 8,765,985 B2Cargill, Incorporated · 2014
- Asphalt emulsion35US 5,928,418 AKao Corporation · 1999
- Pavement repair system utilizing solid phase autoregenerative cohesion35US 8,992,118 B22015