Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5908914 | Benzylic ether phenolic resole resins and their uses | Thomas E. Dando, Robert B. Fechter, Heimo J. Langer | 1999-06-01 |
| 5756640 | Process for preparing benzylic ether phenolic resole resins | Thomas E. Dando, Robert B. Fechter, Heimo J. Langer | 1998-05-26 |
| 5739255 | Benzylic ether phenolic resole resins | Thomas E. Dando, Robert B. Fechter, Heimo J. Langer | 1998-04-14 |
| 5516859 | Polyurethane-forming no-bake foundry binder systems | Ken K. Chang, Robert B. Fechter | 1996-05-14 |
| 5455287 | Foundry mixes containing a polyether polyol and their use | William G. Carpenter | 1995-10-03 |
| 5447968 | Polyurethane-forming binder systems containing 2,2'-dipyridyl, 1,10-phenanthroline, and their substituted alkyl derivatives | Kenneth W. Barnett, William G. Carpenter, Robert B. Fechter | 1995-09-05 |
| 5424376 | Ester cured no-bake foundry binder system | Ken K. Chang, Robert B. Fechter, Gary R. Hysell | 1995-06-13 |
| 5376696 | Foundry mixes based upon reclaimed sand | Kenneth W. Barnett, Gary R. Hysell | 1994-12-27 |
| 5338774 | Polyurethane-forming binder systems containing a polyphosphoryl chloride | Robert B. Fechter | 1994-08-16 |
| 5132339 | Polyurethane-forming foundry binders containing a polyether polyol | William G. Carpenter | 1992-07-21 |
| 4982781 | No-bake process for preparing foundry shapes for casting low melting metal castings | William G. Carpenter | 1991-01-08 |
| 4946876 | Polyurethane-forming foundry binders containing a polyester polyol | William G. Carpenter | 1990-08-07 |
| 4884620 | Hot box process for preparing foundry shapes with certain aqueous phenolic resin solutions | Satish S. Jhaveri, Heimo J. Langer | 1989-12-05 |
| 4876294 | Foundry binder systems based upon acrylated epoxy resins and epoxy resins | H. Randall Shriver, Bruce A. Gruber | 1989-10-24 |
| 4789693 | Heat curable foundry mixes and binder compositions | Satish S. Jhaveri, Heimo J. Langer | 1988-12-06 |
| 4780489 | Modifiers for aqueous basic solutions of phenolic resole resins | Robert B. Fechter, Gary R. Hysell, Young D. Kim, Heimo J. Langer | 1988-10-25 |
| 4766949 | Hot box process for preparing foundry shapes | Satish S. Jhaveri, James T. Schneider | 1988-08-30 |
| 4758400 | Thermosetting molding compounds | Gilbert M. Gynn, Richard Eddy Field | 1988-07-19 |
| 4683252 | Phenolic resin-polyisocyanate binder systems containing an organohalophosphate and use thereof | Robert B. Fechter, John J. Gardikes, Heimo J. Langer | 1987-07-28 |
| 4602069 | Phenolic resin-polyisocyanate binder systems containing a phosphorus based acid | John J. Gardikes, Heimo J. Langer | 1986-07-22 |
| 4540724 | Phenolic resin-polyisocyanate binder systems containing a phosphorus halide and use thereof | John J. Gardikes, Heimo J. Langer | 1985-09-10 |
| 4529771 | Composition, method for preparing and use thereof | Bruce A. Gruber, Diether Koch, Heimo J. Langer | 1985-07-16 |
| 4526219 | Process of forming foundry cores and molds utilizing binder curable by free radical polymerization | Heimo J. Langer, Grant O. Sedgwick | 1985-07-02 |
| 4483961 | Polymeric cyclopentadiene derivatives, method for preparing and use thereof | Diether Koch, Bruce A. Gruber, Heimo J. Langer | 1984-11-20 |
| 4482653 | Cyclopentadiene derivatives, method for preparing, and use thereof | Bruce A. Gruber, Diether Koch, Heimo J. Langer | 1984-11-13 |