Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11994019 | Perforation cluster design method and system based on a hybrid model to predict proppant distribution | Jack J. Kolle | 2024-05-28 |
| 10934042 | Method of making form, fill, and seal bags | Robert Frei, Corbett Hefner, Friedrich Landertshamer | 2021-03-02 |
| 9573342 | Open-mesh bags and methods of production | Robert Frei, Corbett Hefner, Friedrich Landertshamer | 2017-02-21 |
| 9339986 | Open mesh material and bags made therefrom | Robert Frei, Corbett Hefner, Friedrich Landertshamer | 2016-05-17 |
| 8784967 | Open mesh material and bags made therefrom | Robert Frei, Corbett Hefner, Friedrich Landertshamer | 2014-07-22 |
| 5001889 | Apparatus for bagging foodstuffs | — | 1991-03-26 |