Bechtel Group, Inc.
43Patents
0Active
43Granted
38Portfolio score
Filing activity: Jun 3, 1987 → Dec 19, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6367258B1 | Method and apparatus for vaporizing liquid natural gas in a combined cycle power plant | Emerging Cross-Sectional Technologies | 122 | Expired |
| US5596704A | Process flow diagram generator | Physics | 87 | Expired |
| US5851689A | Method for operating a fuel cell assembly | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4793737A | Flexible riser system | Fixed Constructions | 48 | Expired |
| US5518828A | Thermal integration of an air-cooled fuel cell stack | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5433053A | Barbed tee fastener | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6228225A | Coke drum semi automatic top deheader | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US4844840A | Method and structure for hazardous waste containment | Physics | 27 | Expired |
| US5259864A | Method of disposing of environmentally undesirable material and providing fuel for an iron making process e.g. petroleum coke | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5338336A | Method of processing electric arc furnace dust and providing fuel for an iron making process | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5630862A | Method of providing fuel for an iron making process | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4804523A | Use of seawater in flue gas desulfurization | Performing Operations; Transporting | 18 | Expired |
| US4939522A | Method and system for monitoring vehicle location | Physics | 16 | Expired |
| US4913129A | Solar receiver having wind loss protection | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7374742B2 | Direct sulfur recovery system | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5380352A | Method of using rubber tires in an iron making process | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5470445A | Electrode cap with integral tank cover for acid mist collection | Chemistry; Metallurgy | 12 | Expired |
| US5470375A | Method of processing waste material containing non ferrous metal oxides | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6048382A | Method for direct reduction and upgrading of fine-grained refractory and earthy iron ores and slags | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6260464A | In-situ implosion for destruction of dangerous materials | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6196151A | Device and method for an independent module offshore mobile base | Performing Operations; Transporting | 10 | Expired |
| US5220782A | Efficient low temperature solvent removal of acid gases | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6273265A | Magnetically enhanced gravity separator | Performing Operations; Transporting | 9 | Expired |
| US5824194A | Fractionator system for delayed coking process | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5989414A | Self-adjusting surface fluid extraction nozzle | Performing Operations; Transporting | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.