Rensselaer Polytechnic Institute
596Patents
373Active
596Granted
57Portfolio score
Filing activity: Feb 28, 1978 → Apr 22, 2024 · 73 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6149283A | LED lamp with reflector and multicolor adjuster | Emerging Cross-Sectional Technologies | 476 | Expired |
| US7177798B2 | Natural language interface using constrained intermediate dictionary of results | Physics | 371 | Expired |
| US5575790A | Shape memory alloy internal linear actuator for use in orthopedic correction | Emerging Cross-Sectional Technologies | 343 | Expired |
| US6583573B2 | Photosensor and control system for dimming lighting fixtures to reduce power consumption | Emerging Cross-Sectional Technologies | 260 | Expired |
| US5481622A | Eye tracking apparatus and method employing grayscale threshold values | Physics | 220 | Expired |
| US5187096A | Cell substrate electrical impedance sensor with multiple electrode array | Physics | 176 | Expired |
| US6270347A | Nanostructured ceramics and composite materials for orthopaedic-dental implants | Emerging Cross-Sectional Technologies | 144 | Expired |
| US6784462B2 | Light-emitting diode with planar omni-directional reflector | Electricity | 135 | Expired |
| US5416724A | Detection of leaks in pipelines | Physics | 134 | Expired |
| US5657584A | Concentric joint mechanism | Emerging Cross-Sectional Technologies | 103 | Expired |
| US6420293B1 | Ceramic matrix nanocomposites containing carbon nanotubes for enhanced mechanical behavior | Emerging Cross-Sectional Technologies | 100 | Expired |
| US5061997A | Control of visible conditions in a spatial environment | Emerging Cross-Sectional Technologies | 99 | Expired |
| US5588429A | Process for producing optimal current patterns for electrical impedance tomography | Human Necessities | 98 | Expired |
| US7189430B2 | Directed assembly of highly-organized carbon nanotube architectures | Emerging Cross-Sectional Technologies | 93 | Expired |
| US5555481A | Method of producing solid parts using two distinct classes of materials | Emerging Cross-Sectional Technologies | 91 | Expired |
| US5284142A | Three-dimensional impedance imaging processes | Physics | 90 | Expired |
| US7837348B2 | Lighting system using multiple colored light emitting sources and diffuser element | Electricity | 89 | Active |
| US5637185A | Systems for performing chemical mechanical planarization and process for conducting same | Performing Operations; Transporting | 88 | Expired |
| US8292468B2 | Solid state light source light bulb | Mechanical Engineering; Lighting; Heating | 86 | Active |
| US5381333A | Current patterns for electrical impedance tomography | Emerging Cross-Sectional Technologies | 84 | Expired |
| US4920490A | Process and apparatus for distinguishing conductivities by electric current computed tomography | Human Necessities | 76 | Expired |
| US7703942B2 | High-efficient light engines using light emitting diodes | Emerging Cross-Sectional Technologies | 75 | Active |
| US7615204B2 | Direct synthesis of long single-walled carbon nanotube strands | Emerging Cross-Sectional Technologies | 74 | Active |
| US7306337B2 | Calibration-free gaze tracking under natural head movement | Physics | 73 | Active |
| US7020714B2 | System and method of source based multicast congestion control | Emerging Cross-Sectional Technologies | 72 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.