Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6989455 | Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol | Robert P. Hepfer, Craig T. Miller, Gregory A. Norenberg, John R. Budge | 2006-01-24 |
| 6486367 | Process for the hydrogenation of maleic acid to 1,4-butanediol | John R. Budge, Robert A. Dubbert | 2002-11-26 |
| 5969164 | Catalysts for the hydrogenation of maleic acid to 1,4-butanediol | John R. Budge, Robert A. Dubbert | 1999-10-19 |
| 5698749 | Catalysts for the hydrogenation of aqueous maleic acid to 1,4-butanediol | S. Erik Pedersen, John G. Frye, Jr., John R. Budge | 1997-12-16 |
| 5473086 | Process for the hydrogenation of maleic acid to 1,4-butanediol | John R. Budge, S. Erik Pedersen | 1995-12-05 |
| 5440068 | Acetonitrile purification via an adsorption-based process | Marc W. Blackman, Mark C. Cesa | 1995-08-08 |
| 5196602 | Two-stage maleic anhydride hydrogenation process for 1,4-butanediol synthesis | John R. Budge, Anne M. Graham | 1993-03-23 |
| 5072009 | Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone | John R. Budge | 1991-12-10 |
| 4965378 | Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone | John R. Budge | 1990-10-23 |
| 4851546 | Preparation of pyrrolidones by catalytic hydrogenation of maleimides | Anne M. Graham | 1989-07-25 |
| 4827001 | Preparation of .gamma.-butyrolactone and 1,4-butanediol by catalytic hydrogenation of maleic acid | Anne M. Graham | 1989-05-02 |
| 4790963 | Process for synthesis of esters from gaseous reactants containing organic hydroxy compounds and mixtures of hydrogen and carbon monoxide | Anne M. Graham, Frederick A. Pesa | 1988-12-13 |
| 4736054 | Ammoxidation of paraffins to acrylonitrile in the presence of zeolite catalysts | Kenneth J. Kuruc, Robert K. Grasselli | 1988-04-05 |
| 4725626 | Manufacture of alcohols from synthesis gas | Anne M. Graham | 1988-02-16 |
| 4614750 | Ruthenium-copper-containing, activated-carbon-supported catalyst and process for making alcohol using same | Anne M. Graham, Frederick A. Pesa | 1986-09-30 |
| 4560672 | Ruthenium-copper-containing, activated-carbon-supported catalyst and process for making alcohol using same | Anne M. Graham, Frederick A. Pesa | 1985-12-24 |
| 4485079 | Ammoxidation of methanol to produce hydrogen cyanide | James F. Brazdil, Robert K. Grasselli | 1984-11-27 |