C10C 3/00
Working-up pitch, asphalt, bitumen
Official title: Working-up pitch, asphalt, bitumen {(compositions of asphalts and other bitumenous materials C08L95/00)}
C10C3/00 (Working-up pitch, asphalt, bitumen) appears on 807 US grants and 411 published applications in this corpus.
Search patents in C10C- Granted patents
- 807
- Published applications
- 411
- Assignees
- 356
- Inventors
- 1,454
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 21 | 0 |
| 1978 | 14 | 0 |
| 1979 | 10 | 0 |
| 1980 | 29 | 0 |
| 1981 | 30 | 0 |
| 1982 | 33 | 0 |
| 1983 | 27 | 0 |
| 1984 | 38 | 0 |
| 1985 | 35 | 0 |
| 1986 | 25 | 0 |
| 1987 | 19 | 0 |
| 1988 | 16 | 0 |
| 1989 | 14 | 0 |
| 1990 | 22 | 0 |
| 1991 | 15 | 0 |
| 1992 | 12 | 0 |
| 1993 | 12 | 0 |
| 1994 | 14 | 0 |
| 1995 | 13 | 0 |
| 1996 | 19 | 0 |
| 1997 | 11 | 0 |
| 1998 | 15 | 0 |
| 1999 | 8 | 0 |
| 2000 | 17 | 0 |
| 2001 | 13 | 2 |
| 2002 | 9 | 5 |
| 2003 | 2 | 7 |
| 2004 | 3 | 5 |
| 2005 | 1 | 6 |
| 2006 | 6 | 2 |
| 2007 | 4 | 5 |
| 2008 | 6 | 5 |
| 2009 | 2 | 12 |
| 2010 | 5 | 6 |
| 2011 | 11 | 9 |
| 2012 | 6 | 11 |
| 2013 | 6 | 13 |
| 2014 | 6 | 14 |
| 2015 | 20 | 23 |
| 2016 | 14 | 9 |
| 2017 | 14 | 16 |
| 2018 | 12 | 32 |
| 2019 | 18 | 39 |
| 2020 | 22 | 21 |
| 2021 | 29 | 32 |
| 2022 | 28 | 31 |
| 2023 | 21 | 33 |
| 2024 | 22 | 30 |
| 2025 | 29 | 22 |
| 2026 | 12 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C10C 3/02Working-up pitch, asphalt, bitumen: by chemical means reaction270
- C10C 3/002Working-up pitch, asphalt, bitumen: by thermal means177
- C10C 3/007Winning and separation of asphalt from mixtures with aggregates, fillers and other114
- C10C 3/08Working-up pitch, asphalt, bitumen: by selective extraction78
- C10C 3/14Solidifying, disintegrating66
- C10C 3/10Melting45
- C10C 3/005Working-up pitch, asphalt, bitumen: by mixing several fractions39
- C10C 3/06Working-up pitch, asphalt, bitumen: by distillation35
All 9 subgroupsShow fewer
Recent patents
- System and process for increasing a softening point of isotropic pitch6 Oct 2026US 12,753,347 B2Acp Technologies, LLC
- Laser-assisted synthesis of graphene from pitch11 Aug 2026US 12,703,634 B2Saudi Arabian Oil Company
- Processes for making mesophase pitch14 Jul 2026US 12,680,027 B2Saudi Arabian Oil Company
- Asphalt materials from wind turbine blades and other composite materials2 Jun 2026US 12,644,053 B2Western Research Institute
- Thermal conversion of heavy hydrocarbons to mesophase pitch28 Apr 2026US 12,612,562 B2ExxonMobil Chemical Patents Inc.
- Pitches from aromatic feedstocks1 Oct 2026US 2026/0297431 A1ExxonMobil Technology and Engineering Company
- Hydrogen sulfide scavengers17 Sep 2026US 2026/0275199 A1Ecolab USA Inc.
- Process for valorization of pitch from residue upgradation unit along with production of high modulus bitumen27 Aug 2026US 2026/0250579 A1Hindustan Petroleum Corporation Limited
- 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
Most cited
By later US patents
- In situ shale-oil recovery process288US 4,458,757 AExxon Research & Engineering Co. · 1984
- Ambient froth flotation process for the recovery of bitumen from tar sand87US 4,425,227 AGNC Energy Corporation · 1984
- Ethylene .alpha.-olefin block copolymers and methods for production thereof83US 5,733,980 AExxon Chemical Patents Inc. · 1998
- Carbonaceous material and a non aqueous electrolyte cell using the same77US 5,093,216 ASony Corporation · 1992
- Forming optically anisotropic pitches75US 4,208,267 AExxon Research & Engineering Co. · 1980