Robert Leger
13Patents
9h-index
18Co-inventors
69Inventor score
Filing activity: Sep 15, 1977 → Mar 25, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5001202A | Polymers derived from unsaturated polyesters by addition of compounds with an amine function and their use as additives modifying the properties of petroleum middle distillates when cold | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4652273A | Hydrocarbon middle distillates composition containing nitrogen-containing additives for decreasing its cloud point | Chemistry; Metallurgy | 35 | Expired |
| US4900332A | Nitrogenous copolymers, their preparation and use as additives for improving the pour properties of hydrocarbon middle distillates | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US4731095A | Nitrogen containing copolymers useful as additives for lowering the cloud point of hydrocarbon middle distillates and compositions containing them | Chemistry; Metallurgy | 30 | Expired |
| US4511369A | Copolymers with nitrogen groups, useful as additives for decreasing the cloud point of hydrocarbon middle distillates and compositions containing them | Chemistry; Metallurgy | 29 | Expired |
| US4154710A | Method of preparing novel bitumen compositions | Chemistry; Metallurgy | 24 | Expired |
| US5106515A | Polymers derived from unsaturated polyesters by addition of compounds with an amine function and their use as additives modifying the properties of petroleum middle distillates when cold | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5449386A | Amine phosphates having a terminal cyclic imide | Chemistry; Metallurgy | 12 | Expired |
| US4374282A | Ethers of polyols, their preparation and use | Chemistry; Metallurgy | 9 | Expired |
| US5725610A | Additive composition for cold operability of middle distillates | Chemistry; Metallurgy | 6 | Expired |
| US5655298A | Method for joining a tube and a plate | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6860908B2 | Petroleum middle distillate composition containing a substance for limiting the paraffin sedimentation rate | Chemistry; Metallurgy | 0 | Expired |
| US6623536B1 | Multifunctional additive composition for cold process treatment of middle distillates | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.