CALIFORNIA INSTITUTE OF TECHNOLOGY
4,548Patents
2,630Active
4,548Granted
59Portfolio score
Filing activity: Sep 1, 1971 → Oct 3, 2024 · 573 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5471515A | Active pixel sensor with intra-pixel charge transfer | Electricity | 1,255 | Expired |
| US4394613A | Full-charge indicator for battery chargers | Emerging Cross-Sectional Technologies | 818 | Expired |
| US4988617A | Method of detecting a nucleotide change in nucleic acids | Emerging Cross-Sectional Technologies | 713 | Expired |
| US5841126A | CMOS active pixel sensor type imaging system on a chip | Electricity | 647 | Expired |
| US6408878B1 | Microfabricated elastomeric valve and pump systems | Emerging Cross-Sectional Technologies | 605 | Expired |
| US5784542A | Decoupled six degree-of-freedom teleoperated robot system | Physics | 583 | Expired |
| US6818395B1 | Methods and apparatus for analyzing polynucleotide sequences | Mechanical Engineering; Lighting; Heating | 582 | Expired |
| US7294503B2 | Microfabricated crossflow devices and methods | Emerging Cross-Sectional Technologies | 541 | Expired |
| US6911345B2 | Methods and apparatus for analyzing polynucleotide sequences | Mechanical Engineering; Lighting; Heating | 532 | Expired |
| US6960437B2 | Nucleic acid amplification utilizing microfluidic devices | Performing Operations; Transporting | 527 | Expired |
| US6540895B1 | Microfabricated cell sorter for chemical and biological materials | Physics | 495 | Expired |
| US7115305B2 | Method of producing regular arrays of nano-scale objects using nano-structured block-copolymeric materials | Emerging Cross-Sectional Technologies | 491 | Expired |
| US6023783A | Hybrid concatenated codes and iterative decoding | Electricity | 483 | Expired |
| US5662587A | Robotic endoscopy | Human Necessities | 473 | Expired |
| US6665013B1 | Active pixel sensor having intra-pixel charge transfer with analog-to-digital converter | Electricity | 473 | Expired |
| US5118800A | Oligonucleotides possessing a primary amino group in the terminal nucleotide | Chemistry; Metallurgy | 457 | Expired |
| US6063637A | Sensors for sugars and other metal binding analytes | Emerging Cross-Sectional Technologies | 425 | Expired |
| US6371909B1 | Apparatus and method for providing spherical viewing during endoscopic procedures | Human Necessities | 410 | Expired |
| US6233504A | Tool actuation and force feedback on robot-assisted microsurgery system | Physics | 403 | Expired |
| US6767706B2 | Integrated active flux microfluidic devices and methods | Emerging Cross-Sectional Technologies | 385 | Expired |
| US7297518B2 | Methods and apparatus for analyzing polynucleotide sequences by asynchronous base extension | Chemistry; Metallurgy | 367 | Expired |
| US5737500A | Mobile dexterous siren degree of freedom robot arm with real-time control system | Physics | 350 | Expired |
| US6170318A | Methods of use for sensor based fluid detection devices | Physics | 339 | Expired |
| US5171534A | Automated DNA sequencing technique | Emerging Cross-Sectional Technologies | 331 | Expired |
| US6221654A | Method and apparatus for analysis and sorting of polynucleotides based on size | Emerging Cross-Sectional Technologies | 330 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.