David A. Howell
35Patents
13h-index
60Co-inventors
84Inventor score
Filing activity: Jun 6, 1984 → Apr 30, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7643037B1 | Method and apparatus for tilting by applying effects to a number of computer-generated characters | Physics | 85 | Expired |
| US6010061A | Reflow soldering method | Electricity | 52 | Expired |
| US5237622A | Semiconductor pick-and-place machine automatic calibration apparatus | Electricity | 36 | Expired |
| US9816373B2 | Apparatus and method for relieving annular pressure in a wellbore using a wireless sensor network | Fixed Constructions | 31 | Active |
| US5443120A | Method for improving productivity of a well | Fixed Constructions | 30 | Expired |
| US6142357A | Molded selective solder pallet | Electricity | 21 | Expired |
| US7594180B1 | Method and apparatus for titling by presenting computer-generated characters | Physics | 21 | Expired |
| US9122919B2 | Systems and methods for specifying and formulating customized topical agents | Human Necessities | 19 | Active |
| US9122918B2 | Systems and methods for specifying and formulating customized topical agents | Human Necessities | 19 | Active |
| US4995158A | Apparatus for servicing a jet pump hold down beam in a nuclear reactor | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7199805B1 | Method and apparatus for titling | Physics | 14 | Expired |
| US5490185A | System for automatic refueling of a nuclear reactor | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5070589A | Process for servicing a jet pump hold down beam in a nuclear reactor | Emerging Cross-Sectional Technologies | 13 | Expired |
| US9119281B2 | Charged particle accelerator systems including beam dose and energy compensation and methods therefor | Electricity | 12 | Active |
| US5247844A | Semiconductor pick-and-place machine calibration apparatus | Electricity | 11 | Expired |
| US7483041B2 | Method and apparatus for titling | Physics | 9 | Active |
| US6247632A | Molded selective solder pallet | Electricity | 7 | Expired |
| US10321748B2 | Systems and methods for specifying and formulating customized topical agents | Human Necessities | 7 | Active |
| US9303485B2 | Wellbore apparatus and methods for zonal isolations and flow control | Fixed Constructions | 6 | Active |
| US11313215B2 | Methods and systems for monitoring and optimizing reservoir stimulation operations | Physics | 5 | Active |
| US6131793A | Reflow soldering apparatus | Emerging Cross-Sectional Technologies | 4 | Expired |
| US9593559B2 | Fluid filtering device for a wellbore and method for completing a wellbore | Fixed Constructions | 4 | Active |
| US4675961A | Replacement of split-pin assemblies in guide tubes | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4748733A | Removal of old split-pin assemblies from guide tubes and replacement by new split-pin assemblies | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4756067A | Manual replacement of old split-pin assemblies by new split-pin assemblies | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.