White's Electronics, Inc.
32Patents
10Active
32Granted
39Portfolio score
Filing activity: Nov 25, 1974 → Sep 9, 2016 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5325873A | Tube placement verifier system | Emerging Cross-Sectional Technologies | 405 | Expired |
| US4024468A | Induction balance metal detector with inverse discrimination | Physics | 66 | Expired |
| US4030026A | Sampling metal detector | Physics | 62 | Expired |
| US4249128A | Wide pulse gated metal detector with improved noise rejection | Physics | 54 | Expired |
| US4868910A | Metal detector with microprocessor control and analysis | Physics | 31 | Expired |
| US4110679A | Ferrous/non-ferrous metal detector using sampling | Physics | 30 | Expired |
| US5642050A | Plural frequency method and system for identifying metal objects in a background environment using a target model | Physics | 29 | Expired |
| US4906973A | Walk-through metal detector | Physics | 29 | Expired |
| US5654638A | Plural Frequency method and system for identifying metal objects in a background environment | Physics | 27 | Expired |
| US5523690A | Metal detector with bivariate display | Physics | 25 | Expired |
| US5414411A | Pulse induction metal detector | Physics | 24 | Expired |
| US6879161B2 | Method and apparatus for distinguishing metal objects employing multiple frequency interrogation | Physics | 17 | Expired |
| US4293816A | Balanced search loop for metal detector | Physics | 16 | Expired |
| US6911823B2 | Metal detector employing static discrimination | Physics | 15 | Expired |
| US4862316A | Static charge dissipating housing for metal detector search loop assembly | Electricity | 14 | Expired |
| US8729902B1 | Metal detector analysis and display methods | Physics | 12 | Active |
| US4783630A | Metal detector with circuits for automatically screening out the effects of offset and mineralized ground | Physics | 10 | Expired |
| US7088103B2 | Metal detector having a plurality of phase delay discrimination regions with corresponding selectable exception spaces therein | Physics | 8 | Expired |
| US7649356B2 | Pulse induction metal detector having high energy efficiency and sensitivity | Physics | 7 | Expired |
| US5596277A | Method and apparatus for displaying signal information from a metal detector | Physics | 7 | Expired |
| US9207315B1 | Metal detector with motion sensing | Physics | 7 | Active |
| US6172504A | Metal detector target identification using flash phase analysis | Physics | 7 | Expired |
| US6421621B1 | Metal detector target identification using flash phase analysis | Physics | 7 | Expired |
| US7391217B2 | Metal detection methods and apparatus wherein a numeric representation of the sense signal and a noise contribution to the sense signal are produced | Physics | 6 | Active |
| US7148692B2 | Detector for non-ferrous metals with reduced false positive responses | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.