Robert D. Lillquist
16Patents
11h-index
17Co-inventors
65Inventor score
Filing activity: Apr 26, 1982 → Dec 28, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4751571A | Composite visible/thermal-infrared imaging apparatus | Electricity | 136 | Expired |
| US4679068A | Composite visible/thermal-infrared imaging system | Electricity | 133 | Expired |
| US4484059A | Infrared sensor for arc welding | Performing Operations; Transporting | 95 | Expired |
| US5047612A | Apparatus and method for controlling powder deposition in a plasma spray process | Performing Operations; Transporting | 86 | Expired |
| US4687344A | Imaging pyrometer | Physics | 35 | Expired |
| US4477712A | Arc-welding seam-tracking applications employing passive infrared sensors | Performing Operations; Transporting | 31 | Expired |
| US4656331A | Infrared sensor for the control of plasma-jet spray coating and electric are heating processes | Electricity | 31 | Expired |
| US4711986A | Method and apparatus for measuring weld penetration in an arc welding process | Performing Operations; Transporting | 27 | Expired |
| US6018146A | Radiant oven | Electricity | 22 | Expired |
| US5629970A | Emissivity enhanced x-ray target | Electricity | 14 | Expired |
| US5273101A | Method and apparatus for casting an arc melted metallic material in ingot form | Performing Operations; Transporting | 14 | Expired |
| US5273102A | Method and apparatus for casting an electron beam melted metallic material in ingot form | Performing Operations; Transporting | 10 | Expired |
| US4682222A | Stimulated scanning infrared imaging system | Electricity | 10 | Expired |
| US5726919A | Method and apparatus for measuring electron beam effective focus | Electricity | 9 | Expired |
| US5843232A | Measuring deposit thickness in composite materials production | Physics | 8 | Expired |
| US4859830A | Method of determining the weldability of a part | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.