Inventor
ZARDI UMBERTO
51 patents
⚠️ This page may combine multiple inventors who share the name “ZARDI UMBERTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMMONIA CASALE SA
23 patentsUS4372920AFeb 8, 1983
Axial-radial reactor for heterogeneous synthesis
AMMONIA CASALE SA90 citations96
US4963338AOct 16, 1990
Process for heterogeneous synthesis and related reactors
AMMONIA CASALE SA23 citations93
US4769220ASep 6, 1988
Converter for heterogeneous synthesis more particularly for ammonia, methanol and higher alcohols
AMMONIA CASALE SA34 citations93
US4755362AJul 5, 1988
System for reducing energy consumption improving reactors for heterogeneous catalytic synthesis and relative reactors
AMMONIA CASALE SA33 citations93
US4405562ASep 20, 1983
Axial-radial reactor for heterogeneous synthesis
AMMONIA CASALE SA71 citations91
US4952375AAug 28, 1990
System for reducing energy consumption improving reactors for heterogeneous catalytic synthesis and related reactors
AMMONIA CASALE SA19 citations82
US5779988AJul 14, 1998
Heterogeneous synthesis method and apparatus including wall temperature protection
AMMONIA CASALE SA11 citations74
US5585074ADec 17, 1996
Method and apparatus for in-situ modernization of a heterogeneous exothermic synthesis reactor, particularly of the so-called kellogg type
AMMONIA CASALE SA17 citations74
US5254316AOct 19, 1993
Reactors for heterogeneous synthesis
AMMONIA CASALE SA18 citations74
US5184386AFeb 9, 1993
Method for retrofitting carbon monoxide conversion reactors
AMMONIA CASALE SA12 citations74
US5176800AJan 5, 1993
Process for the modernization of existing urea plants and a modernized urea plant
AMMONIA CASALE SA10 citations74
US5171543ADec 15, 1992
Reactor for exothermic heterogeneous synthesis reactions
AMMONIA CASALE SA11 citations74
US5135722AAug 4, 1992
Converters for heterogeneous catalytic synthesis, particularly for ammonia and methanol, under pressure
AMMONIA CASALE SA7 citations74
US5130098AJul 14, 1992
System to improve the efficiency of heterogeneous reactors for exothermic synthesis and more particularly for the reaction of ammonia
AMMONIA CASALE SA9 citations74
US4946657AAug 7, 1990
System to reduce energy consumption in heterogeneous synthesis reactors and related reactors
AMMONIA CASALE SA8 citations74
US4904453AFeb 27, 1990
System for reducing energy consumption improving reactors for heterogeneous catalytic synthesis and relative reactors
AMMONIA CASALE SA8 citations74
US4859425AAug 22, 1989
System for improve the mixing of reacted gases and quench gases in heterogeneous synthesis reactors
AMMONIA CASALE SA10 citations74
US4849206AJul 18, 1989
Process to obtain an optimal gas distribution in catalytic beds for heterogeneous reactions in gaseous phase
AMMONIA CASALE SA8 citations74
US5882606AMar 16, 1999
Method of retrofitting a heterogeneous exothermic synthesis reactor
AMMONIA CASALE SA5 citations63
US5152977AOct 6, 1992
Process for exothermic heterogeneous synthesis with external recovery of heat
AMMONIA CASALE SA4 citations63
US5006316AApr 9, 1991
Reactors for heterogeneous synthesis
AMMONIA CASALE SA6 citations63
US4935210AJun 19, 1990
System for reducing energy consumption in multi-unit reactors for heterogeneous synthesis and related reactors
AMMONIA CASALE SA6 citations63
US4883646ANov 28, 1989
System and device to make catalytic basket wallsfor heterogeneous synthesis reactors
AMMONIA CASALE SA6 citations63
SNAM PROGETTI
13 patentsUS4199537AApr 22, 1980
Liquid distributor for thin-film, tube-bundle apparatus
SNAM PROGETTI49 citations93
US4134939AJan 16, 1979
Liquid distributor for thin-film, tube-bundle apparatus
SNAM PROGETTI36 citations93
US4314077AFeb 2, 1982
Method for the production of urea and purification of water
SNAM PROGETTI23 citations82
US4327068AApr 27, 1982
Method and the reuse of sewage waters of the combined urea-ammonia installations
SNAM PROGETTI9 citations74
US4217114AAug 12, 1980
Process for recovering powders obtained from apparatuses used for treating liquid or solid materials
SNAM PROGETTI12 citations74
US4210600AJul 1, 1980
Method for the preparation of urea with a high-yield reactor
SNAM PROGETTI19 citations74
US3984469AOct 5, 1976
Process for the production of urea
SNAM PROGETTI11 citations73
US4082797AApr 4, 1978
Method for the condensation of carbammate in urea-synthesis installations
SNAM PROGETTI10 citations69
US4013718AMar 22, 1977
Integrated process for the production of urea
SNAM PROGETTI13 citations65
US4137262AJan 30, 1979
Process for the production of urea
SNAM PROGETTI6 citations62
US4092358AMay 30, 1978
Process for the production of urea having a low carbamate content
SNAM PROGETTI5 citations61
US3954861AMay 4, 1976
Process for producing urea
SNAM PROGETTI4 citations61
US3936499AFeb 3, 1976
Process for the production of prilled urea having a low biuret content
SNAM PROGETTI4 citations60
UREA CASALE SA
6 patentsUS6231827B1May 15, 2001
Process for combined production of ammonia and urea
UREA CASALE SA15 citations84
US6150555ANov 21, 2000
Process for urea production
UREA CASALE SA10 citations74
US5660801AAug 26, 1997
Process and apparatus for the revamping of urea synthesis plants consisting of a stripper with ammonia
UREA CASALE SA11 citations74
US5276183AJan 4, 1994
Process and plant for the production of urea
UREA CASALE SA7 citations74
US5380943AJan 10, 1995
Process and plant for the production of urea with differentiated yield reaction spaces
UREA CASALE SA6 citations63
US6274767B1Aug 14, 2001
Process for the revamping of urea synthesis plants consisting of a stripper with ammonia
UREA CASALE SA0 citations52
METHANOL CASALE SA
4 patentsUS5756048AMay 26, 1998
Modernization of a reactor
METHANOL CASALE SA25 citations93
US7279138B2Oct 9, 2007
Horizontal chemical reactor, in particular for methanol synthesis
METHANOL CASALE SA18 citations84
US5951953ASep 14, 1999
Mixing assembly for gaseous flows at different temperatures, in particular for heterogeneous exothermic synthesis reactors
METHANOL CASALE SA5 citations63
US6290920B1Sep 18, 2001
Mixing assembly for gaseous flows at different temperatures, in particular for heterogeneous exothermic synthesis reactors
METHANOL CASALE SA0 citations52
UREA CASALE
2 patentsZARDI UMBERTO
1 patentAMMONIA CASLE S A
1 patentShowing the top 50 of 51 patents by PatentIndex Score.