Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12049022 | Multi-piece layered honeycomb extrusion dies and methods of making same | Samir Biswas, Ryan Joseph Grohsmeyer, Mark Lee Humphrey, Zakariya Radwan Khayat, Kenneth Richard Miller | 2024-07-30 |
| 11780115 | Multi-piece layered honeycomb extrusion dies and methods of making same | Samir Biswas, Ryan Joseph Grohsmeyer, Mark Lee Humphrey, Zakariya Radwan Khayat, Kenneth Richard Miller | 2023-10-10 |
| 10875804 | Glass melting system and method for increased homogeneity | William G. Dorfeld, Susan Lee Schiefelbein, Randy Dean Ziegenhagen | 2020-12-29 |
| 9890069 | Glass manufacturing apparatus and methods | Ralph Alfred Langensiepen, David Myron Lineman, Christopher Charles Tournour, Randy Dean Ziegenhagen | 2018-02-13 |
| 9725349 | Glass manufacturing apparatus and methods | Ralph Alfred Langensiepen, David Myron Lineman, Christopher Charles Tournour, Randy Dean Ziegenhagen | 2017-08-08 |