Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11897683 | Insulated multi-layer sheet and method of making the same | John B. Euler, Anvit GUPTA, Chris Bolek | 2024-02-13 |
| 11214429 | Insulated multi-layer sheet and method of making the same | John B. Euler, Anvit GUPTA, Chris Bolek | 2022-01-04 |
| 11091311 | Insulated container and method of making the same | John B. Euler, Anvit GUPTA, Chris Bolek | 2021-08-17 |
| 10562212 | Process and apparatus to injection mold continuous lengths of hollow plastic articles | — | 2020-02-18 |
| 8820800 | Multi-wall corrugated pipe couplings and methods | William V. Shaffer, James B. Goddard, John M. Kurdziel, David J. Kelley, Jeffrey J. Biesenberger | 2014-09-02 |
| 8820801 | Multi-wall corrugated pipe couplings and methods | William V. Shaffer, James B. Goddard, John M. Kurdziel, David J. Kelley, Jeffrey J. Biesenberger | 2014-09-02 |
| 8579624 | Systems and methods for making multi-wall corrugated pipe | David J. Kelley, Randall A. Kolbet | 2013-11-12 |
| 8496460 | Pipe extrusion die flow path apparatus and method | — | 2013-07-30 |
| 8398914 | Systems and methods for deforming an outer wall of pipe | — | 2013-03-19 |
| 8114324 | Apparatus and method for pressing an outer wall of pipe | David J. Kelley | 2012-02-14 |
| 7988438 | Extrusion die vacuum seals | William V. Shaffer, Randall A. Kolbet | 2011-08-02 |
| 7980841 | Defined ratio dual-wall pipe die | Randall A. Kolbet | 2011-07-19 |