Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5026933 | Olefin oligomerization with surface modified zeolite catalyst | David A. Blain, Nancy M. Page | 1991-06-25 |
| 4982030 | Process for preparation of para-divinylbenzene | Warren W. Kaeding, John M. Klosek, Philip J. Yannich, Jr. | 1991-01-01 |
| 4870038 | Olefin oligomerization with surface modified zeolite catalyst | Nancy M. Page, David A. Blain | 1989-09-26 |
| 4855527 | Olefin oligomerization with surface modified zeolite | Nancy M. Page | 1989-08-08 |
| 4461730 | Method for the selective preparation of secondary alcohols and derivatives thereof | — | 1984-07-24 |
| 4461729 | Method for the selective preparation of secondary alcohols and derivatives thereof | — | 1984-07-24 |
| 4456780 | Extending zeolite catalyst life for disproportionation by treating with phosphorus and/or steam | — | 1984-06-26 |
| 4448983 | Preparation of alkyl carboxylates | — | 1984-05-15 |
| 4447642 | Preparation of alkyl carboxylates | — | 1984-05-08 |
| 4433189 | Catalytic conversion of methanol to light olefins | — | 1984-02-21 |
| 4423266 | Extending isomerization catalyst life by treating with phosphorous and/or steam | — | 1983-12-27 |
| 4405818 | Production of meta-isopropylphenolic products | George E. Stead | 1983-09-20 |
| 4375573 | Selective production and reaction of p-Disubstituted aromatics over zeolite ZSM-48 | — | 1983-03-01 |
| 4371714 | Preparation of 4-alkylanisoles and phenols | — | 1983-02-01 |
| 4365083 | Preparation of alkyl carboxylates | — | 1982-12-21 |
| 4365084 | Preparation of alkyl carboxylates | — | 1982-12-21 |
| 4356338 | Extending catalyst life by treating with phosphorus and/or steam | — | 1982-10-26 |
| 4329509 | Co-production of 2-alkanones and phenols | Werner O. Haag | 1982-05-11 |
| 4301316 | Preparing phenylalkanes | — | 1981-11-17 |
| 4301317 | Preparation of 2-phenylalkanes | — | 1981-11-17 |
| 4298547 | Preparation of improved alkylphenylsulfonates | — | 1981-11-03 |
| 4283573 | Long-chain alkylphenols | — | 1981-08-11 |
| 4234751 | Selective cracking of phenylalkanes | — | 1980-11-18 |
| 4230894 | Method for producing 3-alkylphenols and 1,3-hydroxybenzene | — | 1980-10-28 |
| 4205189 | Method for producing 3-alkylphenols and 1,3-dihydroxybenzene | George T. Burress | 1980-05-27 |