Kanthal GmbH
25Patents
6Active
25Granted
35Portfolio score
Filing activity: Aug 3, 1976 → Dec 5, 2022 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4207457A | Porcupine wire coil electric resistance fluid heater | Electricity | 97 | Expired |
| US4296311A | Electric hot plate | Electricity | 30 | Expired |
| US4267435A | Electric resistance heating element | Electricity | 17 | Expired |
| US4417346A | High temperature melting furnace | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5335310A | Modular heating assembly with heating element support tubes disposed between hangers | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5473141A | Radiant tube heating assembly | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4266119A | Hairpin-type electric resistance heating element | Electricity | 5 | Expired |
| US4236139A | Coil assembly | Electricity | 5 | Expired |
| US4401883A | Electric resistance heater | Electricity | 5 | Expired |
| US4975563A | Heating devices | Electricity | 5 | Expired |
| US4262192A | Molybdenum disilicide resistance wire and support | Electricity | 5 | Expired |
| US5278939A | Vacuum-molded ceramic fiber electric radiant heating unit with resistance heating coils internally free of fibers | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4894515A | Hot plate for cooking | Electricity | 3 | Expired |
| US5543603A | Heat conductor support disk | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4172374A | Wire-coiling machine | Performing Operations; Transporting | 2 | Expired |
| US4111254A | Metal casting method | Performing Operations; Transporting | 2 | Expired |
| US6723969B1 | Electrical heating elements for example made of silicon carbide | Electricity | 2 | Expired |
| US8035475B2 | Quick connect fittings | Emerging Cross-Sectional Technologies | 1 | Active |
| US11692738B2 | Electric fluid flow heater with heating element support member | Electricity | 1 | Active |
| US4330908A | Hairpin-type electric resistance heating element making | Emerging Cross-Sectional Technologies | 0 | Expired |
| US12158305B2 | Methods and systems for cooling a heating element | Electricity | 0 | Active |
| US12281819B2 | Electric fluid flow heater with heating elements stabilization fins | Electricity | 0 | Active |
| US7161462B2 | Gas permeable resistor casing | Electricity | 0 | Expired |
| US12000622B2 | Electric fluid flow heater with stabilisation brace | Electricity | 0 | Active |
| US12209773B2 | Electric heater and electric heating system | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.