Ernest Peter Johnson
1Patents
0Active
1Granted
22Portfolio score
Filing activity: May 18, 1981 → May 18, 1981
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4383914A | Dilution centrifuging of bitumen froth from the hot water process for tar sand | Chemistry; Metallurgy | 30 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.