Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5383694 | Load segment assembly with wire rope | Sergio Castillo, Robert H. Ash, Jr. | 1995-01-24 |
| 5149148 | Pipe swivel joint with improved bore seal | Sergio Castillo, Tep Ungchusri | 1992-09-22 |