David C. Long
167Patents
21h-index
193Co-inventors
93Inventor score
Filing activity: Jan 6, 1988 → Oct 10, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8390729B2 | Method and apparatus for providing a video image having multiple focal lengths | Electricity | 202 | Active |
| US5629631A | Interface card for a probe card assembly | Physics | 86 | Expired |
| US5530371A | Probe card assembly | Physics | 69 | Expired |
| US5546012A | Probe card assembly having a ceramic probe card | Physics | 64 | Expired |
| US5541731A | Interferometric measurement and alignment technique for laser scanners | Electricity | 64 | Expired |
| US6262357A | Thermoelectric devices and methods for making the same | Electricity | 58 | Expired |
| US6121539A | Thermoelectric devices and methods for making the same | Electricity | 53 | Expired |
| US5168454A | Formation of high quality patterns for substrates and apparatus therefor | Electricity | 51 | Expired |
| US7515178B1 | Method of correcting distortions in digital images captured by a digital camera system | Electricity | 50 | Active |
| US6262390A | Repair process for aluminum nitride substrates | Chemistry; Metallurgy | 48 | Expired |
| US5808268A | Method for marking substrates | Performing Operations; Transporting | 46 | Expired |
| US4821614A | Programmable magnetic repulsion punching apparatus | Emerging Cross-Sectional Technologies | 44 | Expired |
| US9554477B1 | Tamper-respondent assemblies with enclosure-to-board protection | Electricity | 41 | Active |
| US9578764B1 | Enclosure with inner tamper-respondent sensor(s) and physical security element(s) | Electricity | 35 | Active |
| US9661747B1 | Tamper-respondent assemblies with enclosure-to-board protection | Electricity | 35 | Active |
| US9555606B1 | Applying pressure to adhesive using CTE mismatch between components | Mechanical Engineering; Lighting; Heating | 33 | Active |
| US9717154B2 | Enclosure with inner tamper-respondent sensor(s) | Electricity | 33 | Active |
| US9591776B1 | Enclosure with inner tamper-respondent sensor(s) | Electricity | 32 | Active |
| US5404247A | Telecentric and achromatic f-theta scan lens system and method of use | Physics | 30 | Expired |
| US5927193A | Process for via fill | Electricity | 29 | Expired |
| US5233624A | Method and apparatus for an increased output for a pumped laser using a moving aperture | Electricity | 22 | Expired |
| US5213249A | Ultrasonic adhesion/dehesion monitoring apparatus with power feedback measuring means | Electricity | 21 | Expired |
| US6975199B2 | Embedded inductor and method of making | Electricity | 20 | Expired |
| US6003418A | Punched slug removal system | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6528735B1 | Substrate design of a chip using a generic substrate design | Electricity | 19 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.