Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12084816 | Method and apparatus for retrieving and placing tie plates | Fred S. Sperling | 2024-09-10 |
| 11982057 | Method and apparatus for retrieving and placing tie plates | Fred S. Sperling | 2024-05-14 |
| 11015298 | Method and apparatus for retrieving and placing tie plates | Fred S. Sperling | 2021-05-25 |
| 11015299 | Method and apparatus for retrieving and placing tie plates | Fred S. Sperling | 2021-05-25 |
| 10982394 | Method and apparatus for retrieving and placing tie plates | Fred S. Sperling | 2021-04-20 |