Ward E. Schultz
20Patents
11h-index
9Co-inventors
68Inventor score
Filing activity: Feb 15, 1974 → Mar 25, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3947683A | Combination of epithermal and inelastic neutron scattering methods to locate coal and oil shale zones | Physics | 275 | Expired |
| US5486695A | Standoff compensation for nuclear logging while drilling systems | Physics | 44 | Expired |
| US4122339A | Earth formation pulsed neutron porosity logging system utilizing epithermal neutron and inelastic scattering gamma ray detectors | Physics | 33 | Expired |
| US4409481A | Method for simultaneous measurement of thermal neutron decay components | Physics | 31 | Expired |
| US4020342A | Earth formation salinity by comparison of inelastic and capture gamma ray spectra | Physics | 21 | Expired |
| US4152590A | Simultaneous thermal neutron decay time and porosity logging system | Physics | 21 | Expired |
| US4122340A | Pulsed neutron porosity logging system | Physics | 21 | Expired |
| US6300624A | Radiation detector | Physics | 17 | Expired |
| US5422480A | Method and apparatus for the verification of helium-3 proportional counters | Physics | 17 | Expired |
| US4436996A | Borehole compensated KUT log | Physics | 15 | Expired |
| US4665486A | Method and apparatus for reducing statistical variations in nuclear well logs | Physics | 12 | Expired |
| US4032778A | Behind casing water volume flow rate measurement using gamma ray spectral degradation | Physics | 11 | Expired |
| US4691102A | Borehole compensation method and apparatus using variations in relative borehole components | Physics | 9 | Expired |
| US4134011A | Earth formation porosity log using measurement of fast neutron energy spectrum | Physics | 7 | Expired |
| US4380701A | Nuclear well logging with neutron source and separate spaced radiation detectors to determine silicon/oxygen ratio | Physics | 7 | Expired |
| US4493998A | Method for monitoring drilling materials for gamma ray activity | Physics | 6 | Expired |
| US3939343A | Pulsed neutron logging system for inelastic scattering gamma rays with gain compensation | Physics | 4 | Expired |
| US4700300A | Indicating barehole rugosity as a function of the difference between shallow and deep log indices | Physics | 4 | Expired |
| US4492864A | Neutron well logging | Physics | 4 | Expired |
| US4002904A | Simultaneous thermal neutron lifetime and boron content well log | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.