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Stanislaw B. Ziemecki
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Wilmington, DE, US
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Patents Grants
last 30 patents
Information
Patent Grant
Aminonitrile production
Patent number
6,841,507
Issue date
Jan 11, 2005
INVISTA North America S.a.r.l.
Alex Sergey Ionkin
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for hydrogenating dinitriles in aminonitriles
Patent number
6,680,403
Issue date
Jan 20, 2004
E. I. Du Pont de Nemours and Company
Alex Sergey Ionkin
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Aminonitrile production
Patent number
6,258,745
Issue date
Jul 10, 2001
E. I. Du Pont de Nemours and Company
Alex Sergey Ionkin
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Aminonitrile production
Patent number
6,080,884
Issue date
Jun 27, 2000
E. I. Du Pont de Nemours and Company
Stanislaw Bogdan Ziemecki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Aminonitrile production
Patent number
5,986,127
Issue date
Nov 16, 1999
E. I. Du Pont de Nemours and Company
Alex Sergey Ionkin
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Selective low pressure hydrogenation of a dinitrile to an aminonitrile
Patent number
5,151,543
Issue date
Sep 29, 1992
E. I. Du Pont de Nemours and Company
Stanislaw B. Ziemecki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pd/Re hydrogenation catalyst for making tetrahydrofuran and 1,4-but...
Patent number
4,609,636
Issue date
Sep 2, 1986
E. I. Du Pont de Nemours and Company
Melinda A. Mabry
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for making tetrahydrofuran and 1,4-butanediol using Pd/Re h...
Patent number
4,550,185
Issue date
Oct 29, 1985
E. I. Du Pont de Nemours and Company
Melinda A. Mabry
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for oxidation of methanol to formaldehyde with nitrous oxide
Patent number
4,233,248
Issue date
Nov 11, 1980
E. I. Du Pont de Nemours and Company
V. N. Mallikarjuna Rao
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Aminonitrile production
Publication number
20040102644
Publication date
May 27, 2004
Alex Sergey Ionkin
C07 - ORGANIC CHEMISTRY