Micropump, Inc.
32Patents
4Active
32Granted
41Portfolio score
Filing activity: Jan 24, 1977 → Nov 22, 2011 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5413566A | Line clamp | Mechanical Engineering; Lighting; Heating | 75 | Expired |
| US5865239A | Method for making herringbone gears | Mechanical Engineering; Lighting; Heating | 54 | Expired |
| US5466131A | Multiple-chamber gear pump with hydraulically connected chambers | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US5718570A | Rotary control valve for a piston pump | Emerging Cross-Sectional Technologies | 47 | Expired |
| US6398513B1 | Fluid dispensers | Physics | 41 | Expired |
| US4127365A | Gear pump with suction shoe at gear mesh point | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US4163164A | Split magnet drive | Electricity | 35 | Expired |
| US5096390A | Pump assembly with integral electronically commutated drive system | Electricity | 34 | Expired |
| US4111614A | Magnetically coupled gear pump construction | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4165206A | Three gear pump with module construction | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US6540486B2 | Fluid dispensers | Physics | 30 | Expired |
| US5702234A | Fluid pump with bearing set having lubrication path | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US5197865A | Integral electronically commutated drive system | Electricity | 28 | Expired |
| US5704767A | Integral pump and flow meter device | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US8734139B2 | Pumps and pump heads comprising volume-compensation feature | Mechanical Engineering; Lighting; Heating | 25 | Active |
| US6109878A | System and a method for velocity modulation for pulseless operation of a pump | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5733105A | Axial cam driven valve arrangement for an axial cam driven parallel piston pump system | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4414523A | Encapsulated magnet for magnetic drive | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4846641A | Readily-removable floating bushing pump construction | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5670852A | Pump motor and motor control | Electricity | 19 | Expired |
| US4493625A | Grooved gear pump | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5540569A | Multiple-chamber gear pump for ink jet printing | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5545871A | Method of making a modified elliptical gear | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6033193A | Single seal gear pump | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6007312A | Encapsulated magnet for magnetic drive pumps | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.