Ralph Busch
13Patents
6h-index
22Co-inventors
66Inventor score
Filing activity: Jul 23, 1997 → Nov 30, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5815582A | Active plus selective headset | Physics | 160 | Expired |
| US6478110B1 | Vibration excited sound absorber | Physics | 28 | Expired |
| US7661315B2 | Method and apparatus for ultrasonic scanning of a fabrication wafer | Electricity | 9 | Expired |
| US7530271B2 | Method and apparatus for coupling ultrasound between an integral ultrasonic transducer assembly and an object | Physics | 8 | Active |
| US7181969B2 | Ultrasonic test chamber for tray production system and the like | Physics | 8 | Expired |
| US7100449B2 | Method and apparatus for coupling ultrasound between an ultrasonic transducer and an object | Physics | 7 | Expired |
| US7131333B2 | Pulse echo ultrasonic test chamber for tray production system | Physics | 6 | Expired |
| US6727384B1 | Method for purifying acid chlorides | Chemistry; Metallurgy | 1 | Expired |
| US10329238B2 | Isomerization of MDACH | Chemistry; Metallurgy | 1 | Active |
| US6770783B1 | Method for producing acid chlorides | Chemistry; Metallurgy | 1 | Expired |
| US10336668B2 | Method for producing cis- and trans-enriched MDACH | Chemistry; Metallurgy | 0 | Active |
| US6895821B2 | Ultrasonic test chamber for tray production system and the like | General | 0 | Revoked |
| US7053244B2 | Method for the continuous production of tetra-substituted ureas | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.