Inventor
Pierre Dufresne
Inventor
Valence, FR
Overview
Patents· 58 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry43%
C10GCracking hydrocarbon oils30%
C07CAcyclic or carbocyclic compounds6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
Y02PClimate change mitigation technologies in the production or processing of goods3%
B07CPostal sorting2%
B08BCleaning in general2%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors2%
C01BNon-metallic elements2%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
PatentTitleYear
10,828,632Method for compositional sorting of catalyst or adsorbent in mixtures of catalysts and/or adsorbents202010,737,939Process for producing hydrogen sulfide in a circulating catalytic bed reactor202010,369,560Method for limiting the emission of dust from catalyst grains201910,279,377Method for sorting contaminated catalysts or adsorbents201910,207,251Process for limiting the emissions of gases from porous particles201910,195,601Process for limiting self heating of activated catalysts201910,065,164Method for completely emptying a catalytic reactor201810,065,165Method for completely emptying a catalytic reactor20189,982,202Process for the start-up of hydrotreatment or hydroconversion units20189,943,835Process for passivation by a nitrogen-containing compound of a zeolitic catalyst, in particular a hydrocracking catalyst20189,533,288'Method for preparing supported metal catalysts for hydrogenating unsaturated hydrocarbons'20179,434,893'Process for the start-up of hydrotreatment or hydroconversion units'20168,772,191'Process for the off site regeneration of solid catalysts'20148,598,059'Process for sulfurizing hydrocarbon treatment catalysts'20138,377,839'Process for the regeneration of catalysts for the treatment of hydrocarbons'20138,307,985'Colour sorting of catalyst or adsorbent particles'20128,283,278'Process for sulfurizing hydrocarbon treatment catalysts'20128,278,234'Process for the regeneration of catalysts for the treatment of hydrocarbons'20128,088,705'Process for sulfurization or presulfurization of solid particles of a catalyst or an adsorbent'20127,713,905'Off-site treatment for hydrogenation catalysts'20107,582,587'Passivation of sulphur hydroconversion catalyst'20097,501,376'Oxidizing heat treatment passivation of sulphide hydrotreatment catalyst'20096,753,291'Process for sulfiding an additive-containing catalyst'20046,559,092'Precarbonisation of a hydrotreatment catalyst'20036,417,134'Ex-situ presulfuration in the presence of hydrocarbon molecule'20026,403,515'Process for treating a catalyst or an adsorbent in a fluidized bed'20026,100,216'Process for incorporating sulfur into the pores of a hydrocarbon treatment catalyst'20006,077,803'Process for off-site preconditioning of a hydrocarbon processing catalyst'20006,059,956'Off-site pretreatment of a hydrocarbon treatment catalyst'20005,985,787'Catalyst presulphuration process using two different presulphuration agents'19995,922,638'Process for presulfurizing hydrotreatment catalysts'19995,854,162'Offsite regeneration process for a catalyst containing at least one precious metal'19985,803,575'Light generator for introducing light into optical fibers'19985,654,252'Process for starting a hydrocarbon conversion by the prior treatment of the catalyst with a sulphur agent and then diluted hydrogen'19975,592,748'Heat treatment of solid catalyst or adsorbent particles in the presence of fluid in a vibrating helical coil'19975,508,243'Heat treatment of solid catalyst or adsorbent particles in the presence of fluid in a vibrating helical coil'19965,502,269'Process for the isomerization of external olefins to internal olefins concomitantly with diolefin hydrogenation'19965,401,392'Process for eliminating mercury and possibly arsenic in hydrocarbons'19955,397,756'Process for the presulphurization of hydrocarbon treatment catalysts'19955,345,019'Method of hydrocracking paraffins emanating from the Fischer-Tropsch process using catalysts based on H-Y zeolite'19945,306,860'Method of hydroisomerizing paraffins emanating from the Fischer-Tropsch process using catalysts based on H-Y zeolite'19945,177,280'Process for producing alkylbenzenes using a catalyst based on a dealuminized Y zeolite and a catalyst based on a dealuminized mordenite'19935,085,763'Catalyst and its use for a catalytic dewaxing process'19925,062,946'Catalytic dewaxing process'19914,977,121'Mordenite-containing catalyst, its preparation and use for isomerizing cuts of high normal paraffin content'19904,977,117'Process of presulfurizing and controlling the activity of catalyst for treating hydrocarbons'19904,935,578'Mordenite-containing catalyst, its preparation and use for isomerizing cuts of high normal paraffin content'19904,909,924'Decationized, dealuminated and stabilized L zeolite and use thereof'19904,891,200'Omega type zeolite having high thermal stability, its process of preparation and its utilization'19904,784,750'Catalytic cracking process'19884,780,436'Zeolite of omega structure catalysts'19884,766,099'Catalyst for oil hydrorefining or mild hydrocracking of heavy oil charges to produce middle distillates'19884,738,941'Hydrocracking catalyst for the production of middle distillates'19884,738,940'Novel hydrocracking or cracking catalyst for hydrocarbon charges'19884,727,217'Catalyst for isomerizing cuts of high normal paraffins content'19884,723,048'Process for dismutation and transalkylation of aromatic hydrocarbons in the presence of a zeolite catalyst'19884,645,752'Hydrocracking catalyst and process for manufacturing the same'19874,501,656'Dewaxing process employing a catalyst with a highly dealuminated mordenite base'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–2002Patents assigned to INST FRANCAIS DU PETROLE (20)· patent assignee history
1985–1996Based in Rueil Malmaison, FR· patent location history
1990–2003Patents assigned to EURECAT EUROP RETRAIT CATALYS (13)· patent assignee history
1994–2018Based in Valence, FR· patent location history
1998Based in La Ferte St Aubin, FR· patent location history
2009–2020Patents assigned to EURECAT SA (20)· patent assignee history
2012–2018Patents assigned to DUFRESNE PIERRE (8)· patent assignee history
2012–2018Patents assigned to GALLIOU PAULINE (5)· patent assignee history
2018–2020Based in Aouste sur Sye, FR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EURECAT SA | 20 | 2009–2020 |
| INST FRANCAIS DU PETROLE | 20 | 1985–2002 |
| EURECAT EUROP RETRAIT CATALYS | 13 | 1990–2003 |
| DUFRESNE PIERREself | 8 | 2012–2018 |
| GALLIOU PAULINE | 5 | 2012–2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Valence, FR | 29 | 1994–2018 |
| Rueil Malmaison, FR | 20 | 1985–1996 |
| Aouste sur Sye, FR | 8 | 2018–2020 |
| La Ferte St Aubin, FR | 1 | 1998 |