Issued Patents All Time
Showing 26–50 of 96 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6156920 | Molybdenum promoted vanadium-antimony-oxide based catalyst for selective paraffin ammoxidation | Mark A. Toft | 2000-12-05 |
| 6087524 | Preparation of vanadium antimonate based catalysts using Sno.sub.2 .multidot.xH.sub.2 o | Joseph P. Bartek | 2000-07-11 |
| 5994259 | Catalysts for the ammoxidation of alkanes | Joseph P. Bartek | 1999-11-30 |
| 5972833 | Preparation of vanadium antimonate based catalysts using SnO.sub.2 .multidot.xH.sub.2 O | Joseph P. Bartek | 1999-10-26 |
| 5895635 | Process for recovery and recycle of ammonia from an acrylonitrile reactor effluent stream using an ammonium phosphate quench system | Kenneth P. Keckler, Richard P. Hauser | 1999-04-20 |
| 5854172 | Preparation of vanadium antimonate based catalysts using SnO.sub.2 .multidot.xH.sub.2 O | Joseph P. Bartek | 1998-12-29 |
| 5696047 | Method of improving catalyst activity, improved catalysts and their use | Noel L. Bremer, Linda C. Brazdil, Fernando Antonio Pessoa Cavalcanti | 1997-12-09 |
| 5693587 | Method for preparing vanadium antimony oxide based oxidation and ammoxidation catalysts | Fernando Antonio Pessoa Cavalcanti, Joseph P. Padolewski | 1997-12-02 |
| 5675057 | Method of improving catalyst activity, improved catalysts and their use | Noel L. Bremer, Linda C. Brazdil, Fernando Antonio Pessoa Cavalcanti | 1997-10-07 |
| 5576469 | Paraffin ammoxidation using vanadium antimony oxide based catalysts with halide promoters | Fernando Antonio Pessoa Cavalcanti | 1996-11-19 |
| 5498588 | Surface modification and promotion of vanadium antimony oxide catalysts | Fernando Antonio Pessoa Cavalcanti | 1996-03-12 |
| 5432141 | Preparation of attrition resistant vanadium-antimony oxide catalysts | Joseph P. Bartek | 1995-07-11 |
| 5214016 | Method of making catalysts containing vanadium, antimony and tin | Ian Raymond Little, Joseph B. Hazen | 1993-05-25 |
| 5094989 | Process for activation of catalysts | Charles S. Lynch, Linda C. Glaeser, Mark A. Toft | 1992-03-10 |
| 5082816 | Lead-zirconate catalysts | Raymond G. Teller, Joseph P. Bartek, Ann M. Brussee | 1992-01-21 |
| 5079207 | Catalyst for ammoxidation of paraffins | Linda C. Glaeser, Mark A. Toft | 1992-01-07 |
| 5068215 | Catalyst for upgrading low molecular weight hydrocarbons | Joseph P. Bartek, John M. Hupp, Robert K. Grasselli | 1991-11-26 |
| 5008427 | Ammoxidation of paraffins | Mark A. Toft, Linda C. Glaeser | 1991-04-16 |
| 4960921 | Multiply promoted MN-SB oxide catalysts | Dev. D. Suresh, Robert K. Grasselli, Frances I. Ratka | 1990-10-02 |
| 4939286 | Promoted bismuth cerium molybdate catalysts | Linda C. Glaeser, Robert K. Grasselli | 1990-07-03 |
| 4921828 | Antimony promoted bismuth cerium molybdate catalysts | Linda C. Glaeser, Robert K. Grasselli | 1990-05-01 |
| 4918214 | Ammoxidation of paraffins and catalysts therefrom | Linda C. Glaeser, Mark A. Toft | 1990-04-17 |
| 4897504 | Method for ammoxidation of paraffins and catalyst system therefor | Linda C. Glaeser, Mark A. Toft | 1990-01-30 |
| 4888438 | Method for ammoxidation of paraffins and catalyst system therefor | Linda C. Glaeser, Mark A. Toft | 1989-12-19 |
| 4886931 | Upgrading low molecular weight hydrocarbons | Joseph P. Bartek, John M. Hupp, Robert K. Grasselli | 1989-12-12 |