Marathon Electric Manufacturing Corportion
32Patents
0Active
32Granted
36Portfolio score
Filing activity: Sep 13, 1976 → Mar 16, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5650680A | Dynamo electric machine with permanent magnet rotor structure | Electricity | 108 | Expired |
| US4777397A | Permanent magnet generator apparatus including a consequent pole rotor | Electricity | 54 | Expired |
| US5714821A | Alternating current generator with direct connected exciter winding | Electricity | 45 | Expired |
| US4748355A | Electrical connector with a releasable load-control element for multi-connectable loads | Electricity | 40 | Expired |
| US4839575A | Alternator regulator having output monitoring and limiting controls | Electricity | 37 | Expired |
| US4912350A | Stator core unit for dynamoelectric machine | Electricity | 36 | Expired |
| US5821652A | Dynamoelectric machines with shaft voltage prevention method and structure | Electricity | 34 | Expired |
| US4289923A | Strain relief grommet in combination with a cord set extending from an electric motor | Electricity | 30 | Expired |
| US4777425A | Alternator voltage regulator with speed responsive control | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6170974A | Dynamoelectric machine with distribution of the winding coils for minimizing voltage stresses and method of locating coil locations therefore | Electricity | 24 | Expired |
| US5808450A | Special alternator assembly with an inherent ballast impedance characteristic for lighting systems | Electricity | 22 | Expired |
| US4547036A | Fuse clip unit | Electricity | 20 | Expired |
| US4927988A | Enclosed switch contact assembly | Electricity | 18 | Expired |
| US4812695A | Annular stator core construction | Electricity | 16 | Expired |
| US4386812A | Bearing lock for a dynamoelectric machine | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4417373A | Channel clamp | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4500162A | Contact clip apparatus for blade-type contacts | Electricity | 14 | Expired |
| US4764838A | Regulated alternator with positive fault related shut down apparatus | Electricity | 13 | Expired |
| US4097114A | Fuse holder with separate reject spring | Electricity | 13 | Expired |
| US4386290A | Centrifugal actuator for A.C. induction motor | Electricity | 12 | Expired |
| US4289989A | Brushless exciter rotor mounting | Electricity | 12 | Expired |
| US4050045A | Finned heat sink for fuse blocks | Electricity | 12 | Expired |
| US5258675A | Mount apparatus for rotatable apparatus coupled to a rotating drive unit | Electricity | 12 | Expired |
| US4257662A | Fuseholder with separate reject spring having integral spreading and collapsing control means | Electricity | 11 | Expired |
| US4419550A | Rotary switch apparatus having a multiple arm contact spring support | Electricity | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.