Alan Lyndon Grantz
72Patents
17h-index
54Co-inventors
87Inventor score
Filing activity: Jun 29, 1978 → Jun 27, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8575880B2 | Direct current motor with independently driven and switchable stators | Electricity | 1,130 | Active |
| US5242439A | Means for inserting instrumentation for a percutaneous diskectomy using a laser | Human Necessities | 169 | Expired |
| US6154339A | Centrifugal capillary seal for use with fluid dynamic bearings | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US6144523A | Simplified conical bearing with independent flow paths | Mechanical Engineering; Lighting; Heating | 42 | Expired |
| US6118620A | In-hub spindle motor with separate fluid dynamic bearings | Mechanical Engineering; Lighting; Heating | 42 | Expired |
| US6019516A | Crowned conical bearing | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US6799892B2 | Hybrid spindle bearing | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US5980113A | Asymmetric sealing means for fluid dynamic bearings | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US5908247A | Sinusoidal grooving pattern for grooved journal bearing | Physics | 28 | Expired |
| US5559651A | Magnetic disc storage system with hydrodynamic bearing | Physics | 28 | Expired |
| US6148501A | Fabrication means for in-hub spindle with separate fluid dynamic bearings | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6181039A | Centrifugal capillary seal for use with fluid dynamic bearings | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6828709B2 | Motor having a fluid dynamic bearing with a radial capillary seal and re-circulation | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US6280088A | Crowned conical bearing | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US6583952B1 | In-hub spindle motor with separate fluid dynamic bearings | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US6149161A | Grooved pumping seal | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US6322252A | Discrete fluid dynamic bearings | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6065877A | Thermal compensation for fluid dynamic bearing using bimetal parts | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6655841B1 | Cartridge style fluid dynamic bearing with conical or spherical bearing elements | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5965966A | Stator grounding means based on radial interference | Electricity | 11 | Expired |
| US5982061A | Spindle motor with two-piece shaft and connector | Electricity | 11 | Expired |
| US10543144B2 | Reciprocating arm motion walker | Human Necessities | 10 | Active |
| US9220544B2 | Implantable device with locking adjustment mechanism and method for using same | Human Necessities | 9 | Active |
| US5938343A | Oil filling seal for hydrodynamic motor utilizing a movable sealing element | Electricity | 9 | Expired |
| US6679501B1 | Motor with stationary shaft and high speed capillary seal | Mechanical Engineering; Lighting; Heating | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.