Roger E. Welser
30Patents
6h-index
11Co-inventors
66Inventor score
Filing activity: Nov 27, 2001 → Nov 15, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7186624B2 | Bipolar transistor with lattice matched base layer | Electricity | 68 | Expired |
| US8921687B1 | High efficiency quantum well waveguide solar cells and methods for constructing the same | Emerging Cross-Sectional Technologies | 37 | Active |
| US6847060B2 | Bipolar transistor with graded base layer | Electricity | 12 | Expired |
| US10020772B1 | Portable solar array | Emerging Cross-Sectional Technologies | 9 | Active |
| US8895838B1 | Multijunction solar cell employing extended heterojunction and step graded antireflection structures and methods for constructing the same | Emerging Cross-Sectional Technologies | 7 | Active |
| US7566948B2 | Bipolar transistor with enhanced base transport | Electricity | 7 | Active |
| US9400343B1 | Highly durable hydrophobic antireflection structures and method of manufacturing the same | Emerging Cross-Sectional Technologies | 6 | Active |
| US6750480B2 | Bipolar transistor with lattice matched base layer | Electricity | 6 | Expired |
| US8969711B1 | Solar cell employing nanocrystalline superlattice material and amorphous structure and method of constructing the same | Emerging Cross-Sectional Technologies | 6 | Active |
| US7115466B2 | Bipolar transistor with graded base layer | Electricity | 4 | Expired |
| US8865506B1 | Roll-to-roll solution process method for fabricating CIGS solar cells and system for the same | Emerging Cross-Sectional Technologies | 2 | Active |
| US7345327B2 | Bipolar transistor | Electricity | 2 | Expired |
| US8981207B1 | High efficiency quantum dot sensitized thin film solar cell with absorber layer | Emerging Cross-Sectional Technologies | 1 | Active |
| US9590133B1 | Thin film solar cells on flexible substrates and methods of constructing the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US11367800B1 | Optically-thin III-V solar cells and methods for constructing the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US10090424B1 | Roll-to-roll solution process method for fabricating CIGS solar cells and system for the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US6800879B2 | Method of preparing indium phosphide heterojunction bipolar transistors | Electricity | 0 | Expired |
| US11817524B1 | Concentrator photovoltaic subassembly and method of constructing the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US10281617B1 | Highly durable hydrophobic antireflection structures and method of manufacturing the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US11177400B1 | Concentrator photovoltaic subassembly and method of constructing the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US8866005B2 | InGaP heterojunction barrier solar cells | Emerging Cross-Sectional Technologies | 0 | Active |
| US9543456B1 | Multijunction solar cell employing extended heterojunction and step graded antireflection structures and methods for constructing the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US9614108B1 | Optically-thin chalcogenide solar cells | Emerging Cross-Sectional Technologies | 0 | Active |
| US10062793B1 | High efficiency quantum well waveguide solar cells and methods for constructing the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US9935220B1 | High efficiency quantum dot sensitized thin film solar cell with absorber layer | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.