SPAN TECH LLC
71Patents
36Active
71Granted
42Portfolio score
Filing activity: Jan 23, 1989 → Dec 12, 2022 · 10 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4953693A | Modular link conveyor system | Performing Operations; Transporting | 75 | Expired |
| US5031757A | Modular link conveyor system with narrow chain | Performing Operations; Transporting | 57 | Expired |
| US6364095B1 | Modular conveyor system with side flexing belt having roller support | Performing Operations; Transporting | 39 | Expired |
| US6223889A | Modular link conveyor with interdigitating grid and interleaving side wings | Performing Operations; Transporting | 37 | Expired |
| US6959803B1 | Self-tensioning conveyor | Performing Operations; Transporting | 35 | Expired |
| US5584373A | Conveyor system with passive roller transfer assembly | Performing Operations; Transporting | 34 | Expired |
| US7314132B2 | Rodless conveyor belt or chain | Performing Operations; Transporting | 34 | Expired |
| US5497874A | Article engaging insert for modular link conveyor | Performing Operations; Transporting | 33 | Expired |
| USD483168S1 | Modular guide link for conveyor chain | General | 29 | Expired |
| US5690210A | Modular link conveyor with interdigitating grid | Performing Operations; Transporting | 26 | Expired |
| US6874617B1 | Modular link conveyor chain with rotatable article engaging assemblies | Performing Operations; Transporting | 24 | Expired |
| US6758776B2 | Split sprocket assembly, related apparatus, and related mounting method | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6585110B2 | Modular conveyor system with side flexing belt having roller support | Performing Operations; Transporting | 22 | Expired |
| US5911305A | Endless loop modular conveyor system with drive screw | Performing Operations; Transporting | 21 | Expired |
| US9604258B2 | Sortation systems and related methods | Performing Operations; Transporting | 19 | Active |
| US5749454A | Conveyor system with driven roller transfer assembly | Electricity | 16 | Expired |
| US6202834A | Modular link conveyor with I-beam guide rail | Performing Operations; Transporting | 16 | Expired |
| US6129202A | Reduced drag side flexing conveyor system | Performing Operations; Transporting | 16 | Expired |
| US5070999A | Helical conveyor/accumulator | Performing Operations; Transporting | 16 | Expired |
| US7559422B2 | Modular link or link section for use in forming a rodless conveyor belt | Performing Operations; Transporting | 15 | Active |
| USD528259S1 | Modular link or link section for use in forming a rodless conveyor belt | General | 14 | Expired |
| US6041917A | Modular link conveyor with interdigitating grid and open apex | Performing Operations; Transporting | 14 | Expired |
| USD804137S1 | Conveyor link | General | 13 | Active |
| US6543609B2 | Split sprocket housing for a conveyor system and related method | Performing Operations; Transporting | 12 | Expired |
| US6298982A | External guide assembly for reducing conveyor belt drag | Performing Operations; Transporting | 12 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.