Research Triangle Institute
352Patents
181Active
352Granted
53Portfolio score
Filing activity: Oct 10, 1975 → Apr 11, 2024 · 38 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5180435A | Remote plasma enhanced CVD method and apparatus for growing an epitaxial semiconductor layer | Chemistry; Metallurgy | 563 | Expired |
| US6300150A | Thin-film thermoelectric device and fabrication method of same | Emerging Cross-Sectional Technologies | 234 | Expired |
| US6559159B2 | Kappa opioid receptor ligands | Human Necessities | 106 | Expired |
| US5064823A | Pentacyclic triterpenoid compounds as topoisomerase inhibitors or cell differentiation inducers | Chemistry; Metallurgy | 103 | Expired |
| US4702917A | Porous bioabsorbable polyesters | Emerging Cross-Sectional Technologies | 97 | Expired |
| US4894456A | Synthesis of camptothecin and analogs thereof | Chemistry; Metallurgy | 93 | Expired |
| US7449821B2 | Piezoelectric micromachined ultrasonic transducer with air-backed cavities | Human Necessities | 86 | Expired |
| US7164077B2 | Thin-film thermoelectric cooling and heating devices for DNA genomic and proteomic chips, thermo-optical switching circuits, and IR tags | Electricity | 74 | Expired |
| US5053512A | Total synthesis of 20(S) and 20(R)-camptothecin and compthothecin derivatives | Chemistry; Metallurgy | 68 | Expired |
| US5609736A | Methods and apparatus for controlling toxic compounds using catalysis-assisted non-thermal plasma | Emerging Cross-Sectional Technologies | 68 | Expired |
| US7076801B2 | Intrusion tolerant server system | Electricity | 65 | Expired |
| US4981968A | Synthesis of camptothecin and analogs thereof | Chemistry; Metallurgy | 65 | Expired |
| US4870030A | Remote plasma enhanced CVD method for growing an epitaxial semiconductor layer | Emerging Cross-Sectional Technologies | 63 | Expired |
| US4636315A | Fluid separator apparatus and method | Physics | 61 | Expired |
| US4837447A | Rasterization system for converting polygonal pattern data into a bit-map | Electricity | 57 | Expired |
| US5244903A | Camptothecin analogs as potent inhibitors of topoisomerase I | Chemistry; Metallurgy | 56 | Expired |
| US5180722A | 10,11-methylenedioxy-20(RS)-camptothecin and 10,11-methylenedioxy-20(S)-camptothecin analogs | Chemistry; Metallurgy | 56 | Expired |
| US7134857B2 | Electrospinning of fibers using a rotatable spray head | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5018479A | Remote plasma enhanced CVD method and apparatus for growing an epitaxial semconductor layer | Chemistry; Metallurgy | 56 | Expired |
| US7495638B2 | Visual display with increased field of view | Electricity | 55 | Expired |
| US5128118A | Cocaine receptor binding ligands | Chemistry; Metallurgy | 53 | Expired |
| US4905705A | Impedance cardiometer | Human Necessities | 51 | Expired |
| US7789930B2 | Particle filter system incorporating nanofibers | Emerging Cross-Sectional Technologies | 49 | Active |
| US5049668A | 10,11-methylenedioxy-20(RS)-camptothecin analogs | Human Necessities | 49 | Expired |
| US4954490A | 11 .beta.-substituted progesterone analogs | Chemistry; Metallurgy | 47 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.