Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1086754 | Workstation | Jack Wayne Johnson, Randall Joseph Kastalanych, John R. Kutzke, Robert Scharfenkamp | 2025-08-05 |
| D1011096 | Desk | Jack Wayne Johnson, Randall Joseph Kastalanych, John R. Kutzke, Robert Scharfenkamp | 2024-01-16 |
| D1008711 | Workstation | Jack Wayne Johnson, Randall Joseph Kastalanych, John R. Kutzke, Robert Scharfenkamp | 2023-12-26 |
| D1003641 | Lectern | Jack Wayne Johnson, Randall Joseph Kastalanych, John R. Kutzke, Robert Scharfenkamp | 2023-11-07 |
| 11647835 | Storage assembly | David Christopher Williams, Roger John Carr, Michael Risdall, Robert Scharfenkamp, Jack Wayne Johnson | 2023-05-16 |
| D977885 | Utility basket for chair | Robert Scharfenkamp, Randall Joseph Kastalanych, Jack Wayne Johnson | 2023-02-14 |
| 11172757 | Table assembly with reversible leg assemblies | Robert Scharfenkamp, Michael Risdall, Jack Wayne Johnson | 2021-11-16 |