Description
Class C10C : WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNEOUS ACID
Subclass 1/18: Working-up tar (obtaining hydrocarbon oils C10G ) by extraction with selective solvents
C10C 1/18
Sub-Class
Stats
- 18 US PATENTS IN FORCE
- 2 US APPLICATIONS PENDING
- 17 Total Patent Owners
- 165 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11525091 | solvated process to convert coal to carbon fibers | Mar 23, 20 | Dec 13, 22 | Carbon Holdings Intellectual Properties, LLC |
| 10640712 | Methods for retrieving, reclaiming, or recycling petroleum-based products and byproducts | May 18, 18 | May 05, 20 | Not available |
| 9994775 | Process for producing mesophase pitch by hydrogenation of high-temperature coal tar | Apr 06, 12 | Jun 12, 18 | ECO ENVIRONMENTAL ENERGY RESEARCH INSTITUTE LIMITED; Dalian University of Technology; |
| 9752098 | Bio-asphalt, bio-asphalt composition and method for preparing them | May 13, 13 | Sep 05, 17 | RESEARCH INSTITUTE OF HIGHWAY, MINISTRY OF TRANSPORTATION |
| 9469816 | Process for upgrading heavy oil and bitumen | May 12, 08 | Oct 18, 16 | KELLOGG BROWN & ROOT LLC |
| 8936700 | Method for hydrocarbon removal and recovery from drill cuttings | Oct 06, 10 | Jan 20, 15 | M-I L.L.C. |
| 8828348 | Reduced puffing needle coke from coal tar | Jul 21, 11 | Sep 09, 14 | GRAFTECH INTERNATIONAL HOLDINGS INC. |
| 8709233 | Disposition of steam cracked tar | Jul 25, 07 | Apr 29, 14 | EXXONMOBIL CHEMICAL PATENTS INC. |
| 8685211 | Oil sands treatment system and process | Jan 23, 12 | Apr 01, 14 | ENVIROTECH GREEN INC |
| 8226816 | Method of producing synthetic pitch | May 24, 07 | Jul 24, 12 | WEST VIRGINIA UNIVERSITY |
| 8057640 | Deasphalting tar using stripping tower | Jun 10, 09 | Nov 15, 11 | EXXONMOBIL CHEMICAL PATENTS INC. |
| 8025774 | Controlling tar by quenching cracked effluent from a liquid fed gas cracker | Jul 20, 09 | Sep 27, 11 | EXXONMOBIL CHEMICAL PATENTS INC. |
| 8017000 | Process for the conversion of heavy feedstocks such as heavy crude oils and distillation residues | Dec 12, 03 | Sep 13, 11 | ENI S.P.A., ENITECNOLOGIE S.P.A., Snamprogetti S.p.A., |
| 7597794 | Deep separation method and processing system for the separation of heavy oil through granulation of coupled post-extraction asphalt residue | Nov 01, 05 | Oct 06, 09 | CHINA UNIVERSITY OF PETROLEUM-BEIJING |
| 5944984 | Solvent deasphalting unit and method for using the same | Mar 20, 96 | Aug 31, 99 | ORMAT INDUSTRIES LTD. |
| 5705139 | Method of producing high quality, high purity, isotropic graphite from coal | Sep 12, 94 | Jan 06, 98 | Not available |
| 5630911 | Apparatus for continuous removal of a solvent or other liquid from solid particles or granules | Jan 18, 95 | May 20, 97 | CROWN IRON WORKS COMPANY |
| 5501788 | Self-stabilizing pitch for carbon fiber manufacture | Jun 27, 94 | Mar 26, 96 | PHILLIPS 66 COMPANY |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0254,396 | Purification Of Tar Containing Gas Streams | Jan 24, 24 | Aug 01, 24 | Not available |
| 2023/0091,961 | Supercritical CO2 Solvated Process to Convert Coal to Carbon Fibers | Nov 23, 22 | Mar 23, 23 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 38 Months (last 2 years Issuances)
- 38 Months (last 5 years Issuances)