Issued Patents All Time
Showing 26–50 of 116 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5859273 | Succinic acid derivative degradable chelants, uses and compositions thereof | Druce K. Crump | 1999-01-12 |
| 5846925 | Succinic acid derivative degradable chelants, uses and compositions thereof | Druce K. Crump | 1998-12-08 |
| 5817613 | Amino nitrile intermediate for the preparation of 2-hydroxyethyl iminodiacetic acid | Phillip S. Athey, Druce K. Crump | 1998-10-06 |
| 5763634 | Process for the preparation of ferric chelate solutions of alkali metal polyamino succinic acids | George M. St. George, S. Bennett Willis | 1998-06-09 |
| 5756065 | Macrocyclic tetraazacyclododecane conjugates and their use as diagnostic and therapeutic agents | Joseph R. Garlich, William A. Fordyce, R. Keith Frank, Jaime Simon, William F. Goeckler +3 more | 1998-05-26 |
| 5741555 | Succinic acid derivative degradable chelants, uses and compositions thereof | Druce K. Crump | 1998-04-21 |
| 5733858 | Succinic acid derivative degradable chelants, uses and compositions thererof | Druce K. Crump | 1998-03-31 |
| 5731468 | Preparation of disodium ethylenediamine-N,N'-disuccinate | George M. St. George | 1998-03-24 |
| 5726341 | Amine nitrile intermediate for the preparation of 2-hydroxyethyl iminodiacetic acid | Phillip S. Athey, Druce K. Crump | 1998-03-10 |
| 5717123 | Process for the preparation of ferric chelate solutions of alkali metal polyamino succinic acids | George M. St. George | 1998-02-10 |
| 5714631 | Conjugates possessing ortho ligating functionality | Joseph R. Garlich, R. Keith Frank, Kenneth McMillan, Jaime Simon | 1998-02-03 |
| 5696239 | Conjugates possessing ortho ligating functionality and complexes thereof | Joseph R. Garlich, R. Keith Frank, Kenneth McMillan | 1997-12-09 |
| 5691120 | Succinic acid derivative degradable chelants, uses and compositions thereof | Druce K. Crump, Eric Brown | 1997-11-25 |
| 5678241 | Process for concentrating thorium containing magnesium slag | Jaime Simon, Garry E. Kiefer | 1997-10-14 |
| 5652085 | Succinic acid derivative degradable chelants, uses and composition thereof | Druce K. Crump, Eric Brown | 1997-07-29 |
| 5652361 | Macrocyclic ligands and complexes | Jaime Simon, Joseph R. Garlich, Garry E. Kiefer, Kenneth McMillan, Richard Keith Frank +5 more | 1997-07-29 |
| 5585226 | Polyamino monoesuccinates for use in photographic processes | Alan D. Strickland, Eric Brown | 1996-12-17 |
| 5569443 | Method for removing hydrogen sulfide from a gas using polyamino disuccinic acid | Druce K. Crump | 1996-10-29 |
| 5491259 | Process to produce aminocarboxylic acids containing low residual salt | Jeffrey G. Grierson, Cameron T. Costain | 1996-02-13 |
| 5488130 | Amino nitrile intermediate for the preparation of 2-hydroxypropyl iminodiacetic acid | Phillip S. Athey, Druce K. Crump | 1996-01-30 |
| 5481018 | Amino nitrile intermediate for the preparation of alanine diacetic acid | Phillip S. Athey, Druce K. Crump | 1996-01-02 |
| 5472633 | Process for the preparation of a stable salt-free iron chelate for use in hydrogen sulfide abatement | Freddie Griffin, Jr., Steven H. Christiansen | 1995-12-05 |
| 5447603 | Process for removing metal ions from liquids | Robert J. Michalowski, Steven H. Christiansen, R. Keith Frank, Teresa Littleton, Jaime Simon +1 more | 1995-09-05 |
| 5447575 | Degradable chelants having sulfonate groups, uses and compositions thereof | Druce K. Crump | 1995-09-05 |
| 5435990 | Macrocyclic congugates and their use as diagnostic and therapeutic agents | Roberta C. Cheng, William A. Fordyce, William F. Goeckleler, William J. Kruper, Jr., Richard Keith Frank +5 more | 1995-07-25 |