SANFORD LIMITED
23Patents
2Active
23Granted
34Portfolio score
Filing activity: Oct 10, 1989 → Apr 1, 2016 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5467893A | Storage and dispensing canister for moist cloth | Human Necessities | 120 | Expired |
| US5743414A | Board edging system and method of manufacture thereof | Performing Operations; Transporting | 103 | Expired |
| USD441398S | Writing instrument | General | 63 | Expired |
| USD452271S | Writing instrument | General | 51 | Expired |
| USD414201S | Double-ended marking pen | General | 41 | Expired |
| USD446242S | Writing instrument | General | 41 | Expired |
| USD414807S | Writing instrument grip | General | 41 | Expired |
| USD500338S1 | Writing instrument | General | 39 | Expired |
| US5432973A | Eraser system for stubborn dry erase marks | Human Necessities | 34 | Expired |
| US4991712A | Desk organizer | Performing Operations; Transporting | 29 | Expired |
| USD501506S1 | Writing instrument | General | 26 | Expired |
| USD490850S1 | Writing instrument | General | 20 | Expired |
| US5897264A | Off-center point marker tip | Performing Operations; Transporting | 20 | Expired |
| USD360790S | Storage and dispensing canister for moist towelettes | General | 18 | Expired |
| USD535693S1 | Writing instrument | General | 16 | Expired |
| USD509854S1 | Writing instrument | General | 14 | Expired |
| USD323353S | Desk organizer | General | 13 | Expired |
| US5497558A | Multi-function drafting instrument | Physics | 11 | Expired |
| USD362683S | Combined eraser system and dry markers | General | 5 | Expired |
| US8109810B2 | Shellfish positioning and opening apparatus | Emerging Cross-Sectional Technologies | 5 | Active |
| USD837885S1 | Cap for a writing instrument | General | 4 | Active |
| USD345311S | Drawing instrument | General | 2 | Expired |
| US6910825B2 | Cap for a writing drawing or painting instrument | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.