Issued Patents All Time
Showing 26–50 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961867 | Process for preventing corrosion of metals by contacting them with compositions prepared from amino substituted pyrazines and carboxylic acids carboxylic acid anhydrides, carboxylic acid, esters or carboxylic acid halides | — | 1990-10-09 |
| 4957640 | Corrosion prevention with compositions prepared from organic fatty amines and nitrogen-containing aromatic heterocyclic compounds | Robert G. Martinez | 1990-09-18 |
| 4950411 | Corrosion inhibitor compositions | — | 1990-08-21 |
| 4946911 | Epoxy resin and water borne coatings therefrom | — | 1990-08-07 |
| 4927932 | Reaction products of pyrimidine, pyridazine and 4-isopropenyl-1-cyclohexene-1-carboxaldehyde | — | 1990-05-22 |
| 4927913 | Cured product from thermosettable prepolymer prepared from heterocyclic materials having alkyl substituents, mono- or dianhydrides, ethylenically unsaturated materials and a hydroxide, carbonate or bicarbonate of a metal of groups I-A or II-A | — | 1990-05-22 |
| 4880934 | Preparation of hydroxyalkylpiperazinones by reacting a 2,3-dihydroxy-1,4-dioxane with a hydroalkyldiamine | John M. Motes | 1989-11-14 |
| 4871848 | Compositions prepared from hydrocarbyl substituted nitrogen-containing aromatic heterocyclic compounds, an aldehyde and/or ketone and an amine | Robert G. Martinez | 1989-10-03 |
| 4861884 | Compositions prepared from amino substituted pyrazines and carboxylic acids, carboxylic acid anhydrides, carboxylic acid esters or carboxylic acid halides | — | 1989-08-29 |
| 4847355 | Thermosettable prepolymer prepared from heterocyclic material having alkyl substituents, mono- or dianhydride, ethylenically unsaturated material and a hydroxide, carbonate of bicarbonate of a metal of groups I-A or II-A | — | 1989-07-11 |
| 4837323 | Corrosion inhibitors | Robert G. Martinez, Terry W. Glass | 1989-06-06 |
| 4837324 | Process for the reaction of piperazine, and derivatives thereof, with glyoxal, and derivatives thereof | — | 1989-06-06 |
| 4831137 | Reaction products of pteridine and 4-isopropenyl-1-cyclohexene-1-carboxaldehyde | — | 1989-05-16 |
| 4814443 | Preparation of hydroxyalkylpiperazinones by reacting glyoxal with hydroxyalkyldiamines | John M. Motes | 1989-03-21 |
| 4814447 | Preparation of hydroxyalkylpiperazinones by reacting an alkylene oxide with decahydropyrazino[2,3-b]pyrazine or its substituted derivatives | — | 1989-03-21 |
| 4812531 | Thermosettable polymers or prepolymers prepared from heterocyclic materials having alkyl substituents, mono- or dianhydrides, ethylenically unsaturated materials and a hydroxide, carbonate or bicarbonate of a metal of groups I-A or II-A | — | 1989-03-14 |
| 4784797 | Process for inhibiting corrosion of ferrous metals | Terry W. Glass | 1988-11-15 |
| 4784796 | Corrosion inhibitors | Terry W. Glass | 1988-11-15 |
| 4783327 | Sulfur dioxide removal from gas streams using hydroxyalkyl substituted piperazinones | James L. Potter, Mark B. Jones, John M. Motes | 1988-11-08 |
| 4765839 | Bituminous compositions containing anti-stripping additives prepared from amines and substituted heterocyclic compounds | Dane Chang | 1988-08-23 |
| 4762627 | Corrosion inhibitors | Robert G. Martinez, Terry W. Glass | 1988-08-09 |
| 4761473 | Novel compositions prepared from organic amines and nitrogen-containing aromatic heterocyclic compounds substituted with at least one group selected from carboxylic acid, carboxylic acid ester, carboxylic acid anhydride and carboxylic acid halide | Robert G. Martinez | 1988-08-02 |
| 4761476 | Compounds formed by the reaction of piperazine, and derivatives thereof, with glyoxal, and derivatives thereof | — | 1988-08-02 |
| 4755600 | Reaction products of pyrazine, pyridine, quinoline and quinoxaline derivatives and 4-isopropenyl-1-cyclohexene-1-carboxaldehyde | — | 1988-07-05 |
| 4752636 | Thermosettable polymer or prepolymer prepared from heterocyclic materials containing nitrogen atoms, carboxylic acid mono- or dianhydrides and a polymerizable material with ethylenically unsaturated groups and cured products therefrom | — | 1988-06-21 |