John W. Schaefer
15Patents
8h-index
10Co-inventors
69Inventor score
Filing activity: May 8, 1978 → Feb 4, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5288147A | Thermopile differential thermal analysis sensor | Physics | 73 | Expired |
| US5842788A | Differential scanning calorimeter | Physics | 29 | Expired |
| US5915283A | Metallic sheet insulation system | Physics | 19 | Expired |
| US5321719A | Thermogravimetric apparatus | Physics | 17 | Expired |
| US5710426A | Dynamic and thermal mechanical analyzer having an optical encoder with diffraction grating and a linear permanent magnet motor | Physics | 17 | Expired |
| US6578367B1 | Liquid nitrogen cooling system | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US6523998B1 | Thermal analysis assembly with distributed resistance and integral flange for mounting various cooling devices | Physics | 14 | Expired |
| US7458117B2 | Protective cover and patient security apparatus | Human Necessities | 8 | Expired |
| US6723036B2 | Methods and apparatus for folding sheet material | Performing Operations; Transporting | 5 | Expired |
| US7175900B2 | Reinforced pad and method of making | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7416328B2 | System and method for a thermogravimetric analyzer having improved dynamic weight baseline | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7566167B2 | System and method for a thermogravimetric analyzer having improved dynamic weight baseline | Emerging Cross-Sectional Technologies | 2 | Active |
| US4213770A | Engine emission pollutant separator | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US5890788A | Anamophic optical system | Physics | 1 | Expired |
| US4173047A | Tubular border frame for inner spring assemblies | Human Necessities | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.