Issued Patents All Time
Showing 26–50 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5391651 | Curable mixtures of mesogenic epoxy resins and mesogenic polyamines and cured compositions | Robert E. Hefner, Jr., Paul M. Puckett | 1995-02-21 |
| 5387657 | Epoxy resins containing thiadiazole and/or oxadiazole moieties | Robert E. Hefner, Jr., Joseph A. Schomaker | 1995-02-07 |
| 5382693 | Bis(aminophenoxy)-alpha-substituted stilbenes | V. Rao Durvasula, Robert E. Hefner, Jr. | 1995-01-17 |
| 5374769 | Polycyanates containing mesogenic moieties as lateral substituents | Robert E. Hefner, Jr. | 1994-12-20 |
| 5364912 | Thermoplastic resins from polyglycidyl esters containing mesogenic moieties | Robert E. Hefner, Jr. | 1994-11-15 |
| 5360884 | Mesogenic glycidyl amine blends | Robert E. Hefner, Jr. | 1994-11-01 |
| 5344898 | Oriented compositions derived from nitro group terminated mesogenic epoxy resin adducts | Robert E. Hefner, Jr. | 1994-09-06 |
| 5342904 | Polymer modified adducts of epoxy resins and active hydrogen containing compounds containing mesogenic moieties | Robert E. Hefner, Jr. | 1994-08-30 |
| 5338828 | Mesogenic cyclic imino ether-containing compositions and polymerization products thereof | Robert E. Hefner, Jr. | 1994-08-16 |
| 5300594 | Bis(aminophenoxy)-alpha-substituted stilbenes, curable mixtures with epoxy resins and cured products | V. Rao Durvasula, Robert E. Hefner, Jr. | 1994-04-05 |
| 5298575 | Nitro group terminated mesogenic epoxy resin adducts | Robert E. Hefner, Jr. | 1994-03-29 |
| 5296570 | Curable mixtures of mesogenic epoxy resins and mesogenic polyamines and cured compositions | Robert E. Hefner, Jr., Paul M. Puckett | 1994-03-22 |
| 5292831 | Mesogenic epoxy compounds | Robert E. Hefner, Jr., Paul M. Puckett | 1994-03-08 |
| 5290887 | Epoxy resins containing thiadiazole and/or oxadiazole moieties | Robert E. Hefner, Jr., Joseph A. Schomaker | 1994-03-01 |
| 5281675 | Mesogenic cyclic imino ether-containing compositions and polymerization products thereof | Robert E. Hefner, Jr. | 1994-01-25 |
| 5276184 | Sulfonamide compounds containing mesogenic moieties | Robert E. Hefner, Jr. | 1994-01-04 |
| 5270406 | Advanced epoxy resin compositions containing mesogenic moieties | Paul M. Puckett, Robert E. Hefner, Jr. | 1993-12-14 |
| 5270405 | Mesogenic epoxy compounds | Robert E. Hefner, Jr., Paul M. Puckett | 1993-12-14 |
| 5270404 | Curable compositions of mesogen-containing advanced epoxy resins and curing agents therefor | Robert E. Hefner, Jr., Paul M. Puckett | 1993-12-14 |
| 5268434 | Diamino-alpha-alkylstilbenes as epoxy resin curing agents | Robert E. Hefner, Jr. | 1993-12-07 |
| 5266661 | Curable compositions containing mesogenic advanced resin compositions and curing agent therefore and cured products | Paul M. Puckett, Robert E. Hefner, Jr. | 1993-11-30 |
| 5266660 | Curable compositions containing mesogenic epoxy compounds and cured products thereof | Robert E. Hefner, Jr., Paul M. Puckett | 1993-11-30 |
| 5264502 | Diamino-alpha-alkylstilbene curing agents for epoxy resins | Robert E. Hefner, Jr. | 1993-11-23 |
| 5262509 | Mesogenic glycidyl amines | Robert E. Hefner, Jr. | 1993-11-16 |
| 5248758 | Mesogenic cyanate functional maleimides and thermosets thereof | Robert E. Hefner, Jr. | 1993-09-28 |