Lawrence B. Marsh
19Patents
11h-index
4Co-inventors
65Inventor score
Filing activity: Nov 18, 1975 → Jul 29, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5811688A | Open channel flowmeter utilizing surface velocity and lookdown level devices | Physics | 65 | Expired |
| US4459858A | Flow meter having an electromagnetic sensor probe | Physics | 64 | Expired |
| US4083246A | Fluid flow meter | Physics | 50 | Expired |
| US5684250A | Self-calibrating open-channel flowmeter | Physics | 27 | Expired |
| US4688432A | Averaging velocity sensor for measuring fluid flow in a conduit | Physics | 23 | Expired |
| US5594179A | Tracer type flowmeter and method using two or more injected trace materials | Physics | 22 | Expired |
| US4015471A | Spherical electromagnetic water current velocity sensor with protruding electrodes | Physics | 14 | Expired |
| US5385056A | Pump station flowmeter | Physics | 13 | Expired |
| US6598487B1 | Magnetic flowmeter having a separable magnet/electrode assembly | Physics | 12 | Expired |
| US5398552A | Magnetic flowmeter having a separable magnetic assembly | Physics | 11 | Expired |
| US5263374A | Flowmeter with concentrically arranged electromagnetic field | Physics | 11 | Expired |
| US4232532A | Apparatus for controlling the temperature of a bottle | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5313842A | Pump station flowmeter with sudden high inflow change detector | Physics | 10 | Expired |
| US8434371B2 | Electromagnetic fluid velocity sensor with adjustable electrodes | Physics | 8 | Active |
| US4549434A | Pressure level sensor | Physics | 4 | Expired |
| US9116060B2 | Auto-zeroing absolute pressure sensor | Physics | 2 | Active |
| US9983223B2 | Electromagnetic boat speedometer having boundary layer velocity compensation | Physics | 0 | Active |
| US9429588B2 | Electromagnetic boat speedometer having removable electrodes | Physics | 0 | Active |
| US10416187B2 | Electromagnetic boat speedometer having removable electrodes | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.