Lionel LLC
51Patents
21Active
51Granted
42Portfolio score
Filing activity: Apr 2, 1997 → Jul 6, 2015 · 14 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7297045B2 | Smart smoke unit | Human Necessities | 79 | Expired |
| US6441570B1 | Controller for a model toy train set | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6765356B1 | Control and motor arrangement for use in model train | Electricity | 18 | Expired |
| US5931099A | Model train set with storage means and variable track arrangement | Emerging Cross-Sectional Technologies | 18 | Expired |
| US7264208B2 | Control for operating features of a model vehicle | Human Necessities | 17 | Expired |
| US6014934A | Modular model train circuit board arrangement | Electricity | 16 | Expired |
| US7350754B2 | Block controller | Human Necessities | 12 | Expired |
| US6485347B1 | Puffing fan driven smoke unit for a model train | Human Necessities | 11 | Expired |
| US5826736A | Coupler arm assembly with distinct uncoupling devices | Human Necessities | 9 | Expired |
| US8892276B1 | Model train control system | Human Necessities | 9 | Active |
| USD657005S1 | Adjustable transformer for a model vehicle | General | 9 | Expired |
| US6676473B2 | Smart smoke unit | Human Necessities | 6 | Expired |
| US7320435B2 | Model toy train track | Human Necessities | 5 | Expired |
| US7307394B1 | Control and motor arrangement for use in model train | Electricity | 4 | Active |
| US6796509B1 | Model toy train track | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6813124B1 | Transformer over-current protection with RMS sensing and voltage fold-back | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7383962B2 | Model train with improved coupling mechanism | Human Necessities | 4 | Expired |
| US7298103B2 | Control and motor arrangement for use in model train | Electricity | 4 | Expired |
| US6873142B2 | Transformer over-current protection with RMS sensing and voltage fold-back | Emerging Cross-Sectional Technologies | 4 | Expired |
| US9937430B2 | Model train control system | Human Necessities | 4 | Active |
| US7656110B2 | Control and motor arrangement for use in model train | Electricity | 3 | Active |
| US7091706B2 | Voltage regulator and method of regulating voltage | Electricity | 3 | Expired |
| US7023154B1 | Train speed control using current and velocity sensing | Emerging Cross-Sectional Technologies | 3 | Expired |
| US9937431B2 | Model train control system | Human Necessities | 3 | Active |
| US7211976B2 | Control and motor arrangement for use in model train | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.