Intevep, S.A.
334Patents
55Active
334Granted
45Portfolio score
Filing activity: Jun 29, 1982 → Jan 9, 2014 · 40 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5226492A | Double seals packers for subterranean wells | Fixed Constructions | 138 | Expired |
| US4591426A | Process for hydroconversion and upgrading of heavy crudes of high metal and asphaltene content | Chemistry; Metallurgy | 121 | Expired |
| US4592827A | Hydroconversion of heavy crudes with high metal and asphaltene content in the presence of soluble metallic compounds and water | Chemistry; Metallurgy | 120 | Expired |
| US4520128A | Catalyst having high metal retention capacity and good stability for use in the demetallization of heavy crudes and method of preparation of same | Chemistry; Metallurgy | 70 | Expired |
| US5849258A | Material with microporous crystalline walls defining a narrow size distribution of mesopores, and process for preparing same | Emerging Cross-Sectional Technologies | 67 | Expired |
| US6607036B2 | Method for heating subterranean formation, particularly for heating reservoir fluids in near well bore zone | Emerging Cross-Sectional Technologies | 66 | Expired |
| US5891829A | Process for the downhole upgrading of extra heavy crude oil | Fixed Constructions | 65 | Expired |
| US5885441A | Steam conversion process and catalyst | Chemistry; Metallurgy | 63 | Expired |
| US4572781A | Solvent deasphalting in solid phase | Chemistry; Metallurgy | 61 | Expired |
| US4851107A | Process for the hydrogenation of heavy and residual oils | Chemistry; Metallurgy | 59 | Expired |
| US4937218A | Catalytic system for the hydroconversion of heavy oils | Performing Operations; Transporting | 58 | Expired |
| US6676828B1 | Process scheme for sequentially treating diesel and vacuum gas oil | Chemistry; Metallurgy | 55 | Expired |
| US5009768A | Hydrocracking high residual contained in vacuum gas oil | Chemistry; Metallurgy | 52 | Expired |
| US4588709A | Catalyst for removing sulfur and metal contaminants from heavy crudes and residues | Chemistry; Metallurgy | 52 | Expired |
| US4662392A | Check valve | Emerging Cross-Sectional Technologies | 49 | Expired |
| US6579572B2 | Water-based system for altering wettability of porous media | Emerging Cross-Sectional Technologies | 48 | Expired |
| US5840271A | Synthetic material with high void volume associated with mesoporous tortuous channels having a narrow size distribution | Chemistry; Metallurgy | 47 | Expired |
| US6444116B1 | Process scheme for sequentially hydrotreating-hydrocracking diesel and vacuum gas oil | Chemistry; Metallurgy | 42 | Expired |
| US5902564A | Material with microporous crystalline walls defining a narrow size distribution of mesopores, and process for preparing same | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4525472A | Process for catalyst preparation for the hydrodemetallization of heavy crudes and residues | Performing Operations; Transporting | 41 | Expired |
| US4508616A | Hydrocracking with treated bauxite or laterite | Chemistry; Metallurgy | 40 | Expired |
| US6343656B1 | System and method for optimizing production from a rod-pumping system | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US4568657A | Catalyst formed of natural clay for use in the hydrodemetallization and hydroconversion of heavy crudes and residues and method of preparation of same | Performing Operations; Transporting | 38 | Expired |
| US5576256A | Hydroprocessing scheme for production of premium isomerized light gasoline | Chemistry; Metallurgy | 38 | Expired |
| US6656348B2 | Hydroprocessing process | Chemistry; Metallurgy | 37 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.