PDH Corporation
1Patents
0Active
1Granted
23Portfolio score
Filing activity: Mar 23, 1993 → Mar 23, 1993
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5381560A | Fitting and retention system for headgear | Human Necessities | 55 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.