Chen; Chung F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chen; Chung F..The latest application filed is for "expansion seal for cable pipe".
- Chen; Chung F. - Mission Viejo CA
| Patent | Date |
|---|---|
| Expansion seal for cable pipe Grant 5,290,073 - Chen March 1, 1 | 1994-03-01 |
| Dirt and moisture sealing pipe plug for sealing different size pipe Grant 5,044,403 - Chen September 3, 1 | 1991-09-03 |
| Structure of pipe plug Grant 5,035,265 - Chen July 30, 1 | 1991-07-30 |
| Fiber optic cable innerduct plug and assembly Grant 4,842,364 - Chen June 27, 1 | 1989-06-27 |
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