Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5118850 | Catalytic reforming of alkyleneamines to linearly-extended polyalkylenepolyamines | Robert G. Bowman, George E. Hartwell | 1992-06-02 |
| 5073635 | Process of preparing linearly-extended polyalkylenepolyamines employing metal silicate catalysts | Robert G. Bowman, George E. Hartwell | 1991-12-17 |
| 5030740 | Process for preparing linearly-extended polyalkylenepolyamines | Robert G. Bowman, George E. Hartwell | 1991-07-09 |
| 5011999 | Process of preparing non-cyclic polyalkylenepolyamines employing group VB metal catalysts | Robert G. Bowman, George E. Hartwell, Enrique G. Ramirez, John E. Lastovica, Jr. | 1991-04-30 |
| 4996363 | Catalytic reforming of alkyleneamines to linearly-extended polyalkylenepolyamines | Robert G. Bowman, George E. Hartwell | 1991-02-26 |
| 4983735 | Preparation of alcohol-extended and amine-extended piperazines | George E. Hartwell, Robert G. Bowman | 1991-01-08 |
| 4927931 | Preparation of alkyl-extended, alcohol-extended or amine-extended piperazines | George E. Hartwell, Robert G. Bowman | 1990-05-22 |
| 4839460 | Novel polymers from aminated polyethers and formaldehyde | — | 1989-06-13 |