Todd A. Ballen
18Patents
5h-index
37Co-inventors
62Inventor score
Filing activity: Jun 14, 2001 → Jun 17, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6848822B2 | Light guide within recessed housing | Mechanical Engineering; Lighting; Heating | 69 | Expired |
| US7583444B1 | Process for making microlens arrays and masterforms | Physics | 24 | Active |
| US6567215B2 | Beaded rear projection screen with tunable gain | Physics | 12 | Expired |
| US7166409B2 | Multipass multiphoton absorption method and apparatus | Physics | 11 | Expired |
| US9703023B2 | Microtiled prismatic cube corner articles | Physics | 8 | Active |
| US9293622B2 | Re-emitting semiconductor carrier devices for use with LEDs and methods of manufacture | Emerging Cross-Sectional Technologies | 4 | Active |
| US10502875B2 | Microtiled prismatic cube corner articles | Physics | 3 | Active |
| US8013345B2 | Optical bonding composition for LED light source | Electricity | 3 | Active |
| US8004767B2 | Process for making microlens arrays and masterforms | Physics | 3 | Active |
| US7790353B2 | Multidirectional photoreactive absorption method | Physics | 2 | Expired |
| US8193543B2 | Monochromatic light source with high aspect ratio | Electricity | 2 | Active |
| US8026115B2 | Optical bonding composition for LED light source | Electricity | 2 | Active |
| US11016229B2 | Optical filter | Physics | 1 | Active |
| US10339804B2 | Sign to vehicle identification system | Physics | 0 | Active |
| US10586446B2 | Sign to vehicle identification system | Physics | 0 | Active |
| US8846518B2 | Multilayer construction | Electricity | 0 | Active |
| US9136429B2 | Multilayer construction | Electricity | 0 | Active |
| US11253933B2 | Non-orthogonal cube corner elements and arrays thereof made by end milling | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.