Northstar, Inc.
5Patents
1Active
5Granted
30Portfolio score
Filing activity: Oct 31, 1980 → Dec 17, 2009
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD298489S | Picture frame | General | 54 | Expired |
| US5971642A | Writing instrument with finger retainer | Performing Operations; Transporting | 18 | Expired |
| US4620389A | Vine trellis assembly | Human Necessities | 13 | Expired |
| US8459241B2 | Liquefied natural gas system for a natural gas vehicle | Emerging Cross-Sectional Technologies | 10 | Active |
| US4329811A | Metal grape stake | Mechanical Engineering; Lighting; Heating | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.