Donald L. Ekhoff
19Patents
10h-index
1Co-inventors
62Inventor score
Filing activity: Nov 15, 1985 → Jun 29, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6781684B1 | Workpiece levitation using alternating positive and negative pressure flows | Physics | 59 | Expired |
| US6097568A | Air dams positioned between spinning disks for reducing the vibration in a data storage device | Physics | 45 | Expired |
| US4755981A | Spindle clamp for removable disks | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5056082A | Apparatus for clamping removable disks | Physics | 30 | Expired |
| US5048005A | Spindle clamp having a unitary lock member | Physics | 25 | Expired |
| US4736475A | Abrading machine for disk shaped surfaces | Performing Operations; Transporting | 18 | Expired |
| US4941293A | Flexible rocking mount with forward pivot for polishing pad | Performing Operations; Transporting | 17 | Expired |
| US5018029A | Shock start for memory disk motor drives | Physics | 15 | Expired |
| US4671018A | Rigid disk finishing apparatus | Performing Operations; Transporting | 15 | Expired |
| US4862302A | Air bladder apparatus for positioning a magnetic head | Physics | 14 | Expired |
| US8553518B1 | Disc spindle with internal particulate removal | Physics | 5 | Active |
| US5148982A | Adjustable slit nozzle | Performing Operations; Transporting | 4 | Expired |
| US5920443A | Disk drive assembly and method having direct aerodynamic disk support | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4891722A | Incremental stepping assembly for a rotary actuator | Physics | 3 | Expired |
| US10293443B1 | Precision pneumatic drilling spindle and method | Electricity | 2 | Active |
| US9156139B1 | Disc spindle with flexible cap clamping | Performing Operations; Transporting | 1 | Active |
| US8074239B2 | Axial force spindle clamp | Physics | 1 | Active |
| US9884671B2 | Marine propulsion system and method | Emerging Cross-Sectional Technologies | 0 | Active |
| US5327312A | Rotary actuator having cantilevered rotational axis | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.