Issued Patents All Time
Showing 25 most recent of 118 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871830 | Polyestercarbonate containing divalent residue of polymerized alkadiene monomer | by Carol M. Mark, representative, by Ester H. Mark, representative, Edward N. Peters | 1989-10-03 |
| 4788276 | Copolyester carbonate with cycloalkylphenyl end groups | — | 1988-11-29 |
| 4751264 | Polyester carbonate containing divalent residue of polymerized, partially hydrogenated conjugated alkadiene monomer | Ester H. Mark, legal representative, Edward N. Peters | 1988-06-14 |
| 4749799 | Preparation of chromans | Esther H. Mark, legal representative, Carol M. Mark, legal representative | 1988-06-07 |
| 4728716 | Polycarbonate exhibiting improved impact properties containing divalent residue of polymerized alkadiene monomer | Ester H. Mark, legal representative, Edward N. Peters | 1988-03-01 |
| 4699971 | Polycarbonate with cycloalkylphenyl end group | Ester H. Mark, legal representative | 1987-10-13 |
| 4677183 | Polycarbonate exhibiting improved impact properties containing divalent residue of polymerized, partially hydrogenated conjugated alkadiene monomer | by Ester H. Mark, representative, Edward N. Peters | 1987-06-30 |
| 4677184 | Polycarbonate containing cycloalkenylphenyl terminal groups | by Ester H. Mark, representative | 1987-06-30 |
| 4663421 | Polyarylate having amide terminal groups | — | 1987-05-05 |
| 4663434 | Polycarbonates exhibiting improved heat resistance | Charles V. Hedges | 1987-05-05 |
| 4638027 | Polycarbonate exhibiting improved heat resistance from cycloalkylidene diphenol | Charles V. Hedges | 1987-01-20 |
| 4638036 | Polycarbonate exhibiting improved heat resistance from halogenated cycloalkylidene diphenol | Charles V. Hedges | 1987-01-20 |
| 4628081 | Polycarbonate exhibiting improved impact properties | Edward N. Peters | 1986-12-09 |
| 4620950 | Process for preparing aryl sulfone sulfonic acids | Charles V. Hedges | 1986-11-04 |
| 4609501 | Process for the preparation of aromatic carbonates | — | 1986-09-02 |
| 4608430 | Polycarbonate exhibiting improved heat resistance from diphenol containing disubstituted phenylene radical | John R. Campbell | 1986-08-26 |
| 4605726 | Polyestercarbonate from spiro dihydric phenol | — | 1986-08-12 |
| 4599463 | Process for the preparation of bisphenols | — | 1986-07-08 |
| 4576996 | Polycarbonates exhibiting improved heat resistance | Charles V. Hedges | 1986-03-18 |
| 4569973 | Copolyetheresters from caprolactone | John A. Tyrell | 1986-02-11 |
| 4562242 | Branched polycarbonate from carboxy containing diphenol | Charles V. Hedges | 1985-12-31 |
| 4560808 | Process for production of dihydric phenols | Charles V. Hedges | 1985-12-24 |
| 4554110 | Process for the preparation of aromatic carbonates | — | 1985-11-19 |
| 4554309 | Polycarbonate from cycloalkylidene tetra alkyl substituted diphenol | Charles V. Hedges | 1985-11-19 |
| 4554330 | Polyestercarbonates exhibiting improved heat resistance from cycloalkylidene diphenol | Charles V. Hedges | 1985-11-19 |