OHIO STEEL INDUSTRIES, INC.
14Patents
5Active
14Granted
39Portfolio score
Filing activity: Oct 13, 1988 → Jun 9, 2015 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5645394A | Utility ramp | Performing Operations; Transporting | 27 | Expired |
| US6679506B2 | Combined shopping cart stroller | Performing Operations; Transporting | 26 | Expired |
| USD465632S1 | Combined shopping cart/stroller | General | 25 | Expired |
| USD478198S1 | Combined shopping cart/stroller | General | 21 | Expired |
| US6675905B2 | Plug aerator | Human Necessities | 20 | Expired |
| USD462496S1 | Handle for a wheeled device | General | 12 | Expired |
| USD473691S1 | Shopping cart | General | 12 | Expired |
| US4968096A | Dump trailer with lifting mechanism | Performing Operations; Transporting | 10 | Expired |
| US8496298B2 | Lawn and garden cart with pivotable tow bar and container | Performing Operations; Transporting | 9 | Active |
| USD470442S1 | Seat back | General | 4 | Expired |
| US9004607B1 | Lawn and garden cart with wide-range pivotable container | Performing Operations; Transporting | 1 | Active |
| US7610646B2 | Lawn sweeper | Human Necessities | 1 | Active |
| US9242588B1 | Lawn and garden cart with pivotable tow bar and container | Performing Operations; Transporting | 1 | Active |
| US9056573B1 | Lawn and garden cart with pivotable tow bar and container | Performing Operations; Transporting | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.