TEIBOW CO., LTD.
10Patents
2Active
10Granted
32Portfolio score
Filing activity: Aug 6, 1975 → Jan 7, 2021
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4362683A | Apparatus and method for producing a continuous nib rod for a writing instrument | Performing Operations; Transporting | 10 | Expired |
| US4065215A | Writing instrument | Performing Operations; Transporting | 9 | Expired |
| US4842433A | Pen tip structure | Performing Operations; Transporting | 8 | Expired |
| USD909889S1 | Packaging container with applicator | General | 6 | Active |
| US4795286A | Pen tip structure | Performing Operations; Transporting | 6 | Expired |
| US4198977A | Dental therapeutic device | Human Necessities | 6 | Expired |
| US4072430A | Writing instrument | Performing Operations; Transporting | 3 | Expired |
| US4207013A | Writing instrument | Performing Operations; Transporting | 3 | Expired |
| US5238320A | Pen nib of a writing instrument | Performing Operations; Transporting | 2 | Expired |
| USD980085S1 | Packaging container with applicator | General | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.