Harold A. Walker
2Patents
1Active
2Granted
33Portfolio score
Filing activity: Apr 10, 1975 → Apr 23, 2009
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4008770A | Scraper assembly for ground tillage implement discs | Human Necessities | 18 | Expired |
| US9365370B2 | Bulk material storage and reclaim system | Performing Operations; Transporting | 3 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.