Philippe Marchal
19Patents
7h-index
30Co-inventors
66Inventor score
Filing activity: Jun 4, 1976 → Nov 18, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4149523A | Solar energy collector system with cylindro-parabolic mirror | Emerging Cross-Sectional Technologies | 87 | Expired |
| US4660861A | Heat insulating means for piping subjected to thermal, hydrostatic and mechanical stresses, positioning thereof and processes for forming said insulating means | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4676722A | High peripheral speed wheel for a centrifugal compressor including fiber loaded scoops and a method of making such a wheel | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4089370A | Compact heat-exchanger for fluids | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6095918A | Method and device for protecting a work surface | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6971262B1 | System and method for rheological characterization of granular materials | Physics | 8 | Expired |
| US5447339A | Pipe for carrying fluids, particularly hydrocarbons | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6450207B2 | Circumferential-weld reinforcing device | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US8061739B2 | Thermal insulation device of a screwed junction | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US7621333B2 | Process to improve extraction of crude oil and installation implementing such process | Fixed Constructions | 4 | Active |
| US6446321B1 | Method for producing pipes to be connected in a double-wall piping system and implementing machine | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6568431B2 | Double-shell pipeline exhibiting improved buckling strength | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US8327530B2 | Installation for continuous application of particulate insulation to an elongate element | Emerging Cross-Sectional Technologies | 1 | Active |
| US5994538A | Spherical 10-phenothiazinylpropanoic acid agglomerates and method for preparing same | Chemistry; Metallurgy | 1 | Expired |
| US10999898B2 | Electrically heated fluid transportation pipe | Electricity | 1 | Active |
| US9829138B2 | Thermally insulated and heated double-walled pipe segment for fitting by screw fastening, and a method of implementing such a pipe segment | Emerging Cross-Sectional Technologies | 1 | Active |
| US9750776B2 | Agents for promoting secretion and/or suppressing decrease of adiponectin | Human Necessities | 0 | Active |
| US10288210B2 | Pipe section | Emerging Cross-Sectional Technologies | 0 | Active |
| US9181116B2 | Organophosphorus derivatives and use thereof as uncoupling agents | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.