Endress+Hauser Flowtec AG
666Patents
510Active
666Granted
59Portfolio score
Filing activity: Apr 30, 1990 → Nov 21, 2022 · 136 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6073495A | Measuring and operating circuit of a coriolis-type mass flow meter | Physics | 63 | Expired |
| US5648616A | Evaluation Electronics of a coriolis mass flow sensor | Physics | 57 | Expired |
| US5531126A | Coriolis-type mass flow sensor with flow condition compensating | Physics | 56 | Expired |
| US6006609A | Coriolis mass flow/density sensor with a single straight measuring tube | Physics | 51 | Expired |
| US7296482B2 | Flowmeter | Physics | 48 | Expired |
| US7426443B2 | Device for determining and/or monitoring the volume flow rate and/or mass flow rate of a medium to be measured | Physics | 46 | Expired |
| US7392709B2 | Inline measuring device with a vibration-type measurement pickup | Physics | 43 | Active |
| US5705754A | Coriolis-type mass flowmeter with a single measuring tube | Physics | 43 | Expired |
| US7469599B2 | Flowmeter mounted on a containment | Physics | 40 | Expired |
| US5796011A | Coriolis-type mass flow sensor | Physics | 39 | Expired |
| US6351999B1 | Vortex flow sensor | Physics | 37 | Expired |
| US5602345A | Double straight tube coriolis type mass flow sensor | Physics | 37 | Expired |
| US8282265B2 | Apparatus for mixing at least two fluids in a pulsating manner | Physics | 32 | Active |
| US5280727A | Electromagnetic flow measuring tube and method of making same | Physics | 30 | Expired |
| US5533408A | Clamp-on ultrasonic volumetric flowmeter | Physics | 30 | Expired |
| US8904878B2 | Ultrasonic flow measuring system including a mounting latch for mounting the transducers to the measuring tube | Physics | 29 | Active |
| US7040179B2 | Process meter | Physics | 29 | Expired |
| US7882751B2 | Measuring system with a flow conditioner for flow profile stabilization | Physics | 26 | Active |
| US6651513B2 | Vibration meter and method of measuring a viscosity of a fluid | Physics | 25 | Expired |
| US6666098B2 | Vibratory transducer | Physics | 25 | Expired |
| US8863589B2 | Measuring transducer of vibration type and measuring system | Physics | 24 | Active |
| US6711958B2 | Coriolis mass flow rate/density/viscoy sensor with two bent measuring tubes | Physics | 23 | Expired |
| US5939643A | Vortex flow sensor with a cylindrical bluff body having roughned surface | Physics | 22 | Expired |
| US5616868A | Coriolis-type mass flow sensor with a single measuring tube | Physics | 22 | Expired |
| US7406878B2 | Method for measuring a medium flowing in a pipeline and measurement system therefor | Physics | 22 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.