Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5093031 | Surface active lactams | Robert B. Login, Ratan K. Chaudhuri, Rama Haldar, Mohamed M. Hashem, Michael W. Helioff | 1992-03-03 |
| 5011941 | Quaternized nitrogen containing compounds | Ratan K. Chaudhuri, Robert B. Login | 1991-04-30 |
| 5008104 | Quaternized nitrogen containing compounds | Ratan K. Chaudhuri, Robert B. Login | 1991-04-16 |
| 4886890 | Diquarternary nitrogen compounds | Ratan K. Chaudhuri, Robert B. Login | 1989-12-12 |
| 4885371 | Process for the preparation of purified N-alkyl lactams | Mohamed M. Hashem | 1989-12-05 |
| 4885158 | Heat stable quaternized lactams having oxylated sulfur anions | Thomas Rizzo, Robert B. Login | 1989-12-05 |
| 4883655 | Quaternized nitrogen containing polycyclic compounds | Robert B. Login, Ratan K. Chaudhuri, Michael W. Helioff | 1989-11-28 |
| 4842858 | Polymeric halophors | Mohamed M. Hashem, Robert B. Login | 1989-06-27 |
| 4837013 | Quaternized nitrogen containing compounds | Robert B. Login, Ratan K. Chaudhuri, Michael W. Helioff | 1989-06-06 |
| 4834970 | Cosometic compositions containing quaternized nitrogen containing compound | Robert B. Login, Ratan K. Chaudhuri, Michael W. Helioff | 1989-05-30 |
| 4830851 | Polymeric halophors | Mohamed M. Hashem, Robert B. Login | 1989-05-16 |
| 4830850 | Quaternized nitrogen containing compounds | Robert B. Login, Ratan K. Chaudhuri, Michael W. Helioff | 1989-05-16 |
| 4806609 | Pyrrolidonyl acrylate block polymers | Mohamed M. Hashem, Fulvio J. Vara | 1989-02-21 |
| 4801400 | Epoxy pyrrolidone based non-ionic surfactants | Robert B. Login, Mohamed M. Hashem | 1989-01-31 |
| 4792604 | Manufacture of haloalkyl lactams | Thomas Rizzo | 1988-12-20 |
| 4760152 | Pyrrolidonyl acrylate block polymers | Mohamed M. Hashem, Fulvio J. Vara | 1988-07-26 |
| 4732990 | Quaternized nitrogen containing compounds | Robert B. Login, Ratan K. Chaudhuri, Michael W. Helioff | 1988-03-22 |
| 4713463 | Synthesis of n-epoxypropyl lactams | Ratan K. Chaudhuri, Robert B. Login | 1987-12-15 |
| 4698412 | Lactam copolymers | Robert B. Login, Mohamed M. Hashem | 1987-10-06 |
| 4313764 | Isocyanate polyoxyalkylenes | Lindley S. Wood, Paritosh M. Chakrabarti | 1982-02-02 |
| 4294848 | Thiocyano-containing polyoxyalkylenes | Lindley S. Wood, Paritosh M. Chakrabarti | 1981-10-13 |
| 4278821 | .omega.,.omega.-Bis(dialkylhydroxyphenyl) alkanols as intermediates in making effective antioxidants | — | 1981-07-14 |
| 4261912 | Ester of .omega.,.omega.-bis(dialkylhydroxyphenyl) alkanols as effective antioxidants | — | 1981-04-14 |
| 4259474 | Sulfur-containing polyoxyalkylenes | Paritosh M. Chakrabarti, Lindley S. Wood | 1981-03-31 |
| 4255561 | Sulfide polymers of polyoxyalkylenes | Lindley S. Wood, Paritosh M. Chakrabarti | 1981-03-10 |