Description
Class C10C : WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNEOUS ACID
Subclass 1/04: Working-up tar (obtaining hydrocarbon oils C10G ) by distillation
C10C 1/04
Sub-Class
Stats
- 16 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- 16 Total Patent Owners
- 71 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12209220 | Using stimulus to convert coal to mesophase pitch and carbon fibers | Aug 28, 23 | Jan 28, 25 | CARBON HOLDINGS INTELLECTUAL PROPERTIES, LLC |
| 11739271 | Using stimulus to convert coal to mesophase pitch and carbon fibers | Jul 12, 22 | Aug 29, 23 | Carbon Holdings Intellectual Properties, LLC |
| 10781375 | Froth washing prior to naphtha dilution | Sep 06, 18 | Sep 22, 20 | Syncrude Canada Ltd. in trust for the owners of the Syncrude Project as such owners exist now and in the future |
| 10253264 | Method of producing needle coke for low CTE graphite electrodes | Oct 01, 17 | Apr 09, 19 | Graftech International Holdings, Inc. |
| 9777221 | Method of producing needle coke for low CTE graphite electrodes | Jun 29, 06 | Oct 03, 17 | GRAFTECH INTERNATIONAL HOLDINGS INC. |
| 8747651 | High coking value pitch | May 22, 08 | Jun 10, 14 | GRAFTECH INTERNATIONAL HOLDINGS INC. |
| 8728300 | Flash processing a solvent deasphalting feed | Oct 15, 10 | May 20, 14 | KELLOGG BROWN & ROOT LLC |
| 8580105 | Development process of an ecological binder system for refractories mixes | Mar 05, 09 | Nov 12, 13 | Saint-Gobain do Brasil Produtos Industriais e para Construção Ltda., Saint-Gobain do Brasil Produtos Industriais e para Construção Ltda., |
| 8083930 | VPS tar separation | Jul 25, 07 | Dec 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., |
| 7772145 | Manufacture of environmentally friendly carbon-bonded refractory product in the cold mixing process | Jan 11, 05 | Aug 10, 10 | Rütgers Chemicals AG, Rütgers Chemicals AG, |
| 7481908 | System and a process for obtaining high purity phenanthrene from phenanthrene enriched coal tar fraction | Mar 26, 02 | Jan 27, 09 | COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH |
| 6319392 | Coal tar extract with reduced aromatic hydrocarbon content, method for obtaining same and dermatological and cosmetic compositions | Sep 10, 99 | Nov 20, 01 | PIERRE FABRE DERMO-COSMETIQUE |
| 5843298 | Method of production of solids-free coal tar pitch | Sep 27, 96 | Dec 01, 98 | UCAR CARBON COMPANY INC. |
| 5645692 | Process for the stabilization of crude oils at the outlet of the extraction well and device for implementation thereof | Jun 26, 95 | Jul 08, 97 | Elf Aquitaine Production, Elf Exploration Production, |
| 5266184 | Process for increasing pitch yield from coal tar | Feb 07, 92 | Nov 30, 93 | KOPPERS DELAWARE, INC., SILVER POINT FINANCE, LLC, VERTELLUS SPECIALTIES INC., |
Recent Publications
Not Available
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 43 Months (last 2 years Issuances)
- 43 Months (last 5 years Issuances)