Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
IL

Ignacio Layrisse — 13 Patents

ISIntevep, S.A.: 12 patents #9 of 440Top 3%
BPBritish Petroleum: 2 patents #64 of 360Top 20%
San Antonio de los Altos, VE: #2 of 38 inventorsTop 6%
Overall (All Time): #362,438 of 4,157,543Top 9%
13 Patents All Time
Ignacio Layrisse has been granted 13 US patents while listed as an inventor at Intevep, S.A.. The first was granted in 1984 and the most recent in June 2002. Ignacio Layrisse ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Ignacio Layrisse in San Antonio de los Altos, VE.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6405799 Process for in SITU upgrading of heavy hydrocarbon Carlos Vallejos, Tito Vasquez, Gerson Siachoque 2002-06-18
6384091 Emulsion with coke additive in hydrocarbon phase and process for preparing same Nilia C Romero, Gustavo Nunez 2002-05-07
6069178 Emulsion with coke additive in hydrocarbon phase and process for preparing same Nilia C Romero, Gustavo Nunez 2000-05-30
5964906 Emulsion with solid additive in hydrocarbon phase and process for preparing same Nilia C Romero, Gustavo Nunez 1999-10-12
5677267 Thixotropic fluid for well insulation Simon Suarez, Carlos Rios, Jose Gregorio Tovar 1997-10-14
4994090 Process for controlling sulfur-oxide formation and emissions when burning a combustible fuel formed as a hydrocarbon in water emulsion Domingo Rodriguez, Euler G. Jimenez, Jose P. Salazar, Hercilio Rivas 1991-02-19
4915819 Treatment of viscous crude oils Maria L. Chirinos, Jorge Luis Grosso, Alan Stockwell 1990-04-10 $6,023,000
4834775 Process for controlling sulfur-oxide formation and emissions when burning a combustible fuel formed as a hydrocarbon in water emulsion Domingo Rodriguez, Euler G. Jimenez, Jose P. Salazar, Hercilio Rivas 1989-05-30
4806231 Method for desalting crude oil Maria L. Chirinos, David E. Graham, Alan Stockwell 1989-02-21 $1,479,000
4801304 Process for the production and burning of a natural-emulsified liquid fuel Domingo R. Polanco, Hercilio Rivas, G. Euler Jimenez, Lirio Q. de Paz, Jose P. Salazar +3 more 1989-01-31
4781819 Treatment of viscous crude oils Maria L. Chirinos, Jorge Luis Grosso, Alan Stockwell 1988-11-01 $3,555,000
4521277 Apparatus for upgrading heavy hydrocarbons employing a diluent Jose L. Calderon 1985-06-04
4455221 Process for upgrading heavy hydrocarbons employing a diluent Jose L. Calderon 1984-06-19