Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806517 | Method for making pelleted phosphated catalysts derived from group IVB transition metal oxides and catalysts thus prepared | Lewis W. Watts, Jr., John M. Larkin, Terry L. Renken | 1989-02-21 |
| 4757143 | Catalytic method for the manufacture of triethylenediamine | Walter H. Brader, Jr., Ernest L. Yeakey, Edward C. Y. Nieh, Thomas T. McConnell | 1988-07-12 |
| 4754036 | Conjoint production of C-methyl triethylene diamine and allyl piperazine | Thomas T. McConnell | 1988-06-28 |
| 4727143 | Method for the selective manufacture of N,N'-dimethyl piperazine | Peter S. Morford | 1988-02-23 |
| 4698428 | Catalytic method for the manufacture of N,N'-dimethylpiperazine | Robert L. Zimmerman | 1987-10-06 |
| 4698427 | Catalytic method for the conjoint manufacture of N-aminoethylpiperazine and tetraethylenepentamine | — | 1987-10-06 |
| 4647664 | Catalytic method for the manufacture of N-alkylmorpholines | Robert L. Zimmerman | 1987-03-03 |
| 4629809 | Process for selectively preparing acetic acid by carbonylation of methanol in the presence of a novel iodide-free catalyst system | Jiang-Jen Lin, Roger G. Duranleau | 1986-12-16 |
| 4609761 | Continuous preparation of linear polyethylenepolyamines using novel catalysts derived from titania and a trialkyl phosphate or phosphite | Lewis W. Watts, Jr. | 1986-09-02 |
| 4588842 | Catalytic preparation of linear polyethylenepolyamines | — | 1986-05-13 |
| 4584405 | Activated carbon catalysts and preparation of linear polyethylene polyamines therewith | — | 1986-04-22 |
| 4584406 | Preparation of linear polyethylenepolyamines with modified catalysts | Terry L. Renken | 1986-04-22 |
| 4578519 | Catalytic synthesis of linear polyethylenepolyamines (polyethylenepolyamine preparation and catalyst) | John M. Larken | 1986-03-25 |
| 4578518 | Catalytic (calcined catalyst and) preparation of linear polyethylenepolyamines (therewith) | Lewis W. Watts, Jr. | 1986-03-25 |
| 4555582 | Catalytic preparation of linear polyethylenepolyamines [with supported catalyst] | — | 1985-11-26 |
| 4550209 | Process for the preparation of linear polyethylenepolyamines by reacting monoethanolamine with ethylenediamine in the presence of an intercalatively active catalyst | Susan D. Unvert, John F. Knifton | 1985-10-29 |
| 4547598 | Cobalt borate catalyzed decomposition of organic hydroperoxides | John R. Sanderson, Kenneth P. Keating, Edward T. Marquis | 1985-10-15 |
| 4540822 | Regenerative process for the preparation of linear polyethylenepolyamines using a supported catalyst | — | 1985-09-10 |
| 4524143 | Catalyst for preparation of linear polyethylenepolyamines | — | 1985-06-18 |
| 4521609 | Cycloalkane epoxides produced by air oxidation of cycloalkenes over lead zirconate as catalyst | John R. Sanderson, Lewis W. Watts, Jr., Terry L. Renken | 1985-06-04 |
| 4469880 | Cycloalkane epoxides produced by air oxidation of cycloalkenes | John R. Sanderson, Lewis W. Watts, Jr., Terry L. Renken | 1984-09-04 |
| 4436932 | Alkane acetates produced by oxidative esterification of olefins over ammonium borate in the presence of a carboxylate ion source | John R. Sanderson, Lewis W. Watts, Jr. | 1984-03-13 |
| 4337369 | Method of decolorizing mixtures of t-butyl alkylphenols | Ernest L. Yeakey | 1982-06-29 |
| 4321413 | Production of ethylene glycol dialkyl ethers using dialkyl ethers | — | 1982-03-23 |
| 4218403 | Synthesis of aromatic aldehydes | — | 1980-08-19 |