Research Development Foundation
345Patents
134Active
345Granted
49Portfolio score
Filing activity: Mar 21, 1977 → Jun 26, 2024 · 38 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5049388A | Small particle aerosol liposome and liposome-drug combinations for medical use | Emerging Cross-Sectional Technologies | 275 | Expired |
| US5225326A | One step in situ hybridization assay | Emerging Cross-Sectional Technologies | 145 | Expired |
| US4083245A | Variable orifice gas flow sensing head | Physics | 121 | Expired |
| US5002071A | Injectable soft tissue augmentation materials from the placenta and their method of manufacture | Human Necessities | 94 | Expired |
| US5822036A | Eye imaging unit having a circular light guide | Human Necessities | 85 | Expired |
| US5250148A | Process for growing GaAs monocrystal film | Chemistry; Metallurgy | 85 | Expired |
| US4989283A | Inflation control for air supports | Human Necessities | 84 | Expired |
| US4565747A | Boron nitride containing titanium nitride, method of producing the same and composite ceramics produced therefrom | Chemistry; Metallurgy | 80 | Expired |
| US5133761A | Finger joint prosthesis | Human Necessities | 78 | Expired |
| US6090407A | Small particle liposome aerosols for delivery of anti-cancer drugs | Human Necessities | 72 | Expired |
| US6444233B1 | Triterpene compositions and methods for use thereof | Chemistry; Metallurgy | 71 | Expired |
| US4812457A | Prostaglandin derivatives | Chemistry; Metallurgy | 71 | Expired |
| US4798989A | Scanning tunneling microscope installed in electron microscope | Emerging Cross-Sectional Technologies | 66 | Expired |
| US5608472A | Eye imaging system | Human Necessities | 66 | Expired |
| US5342761A | Oncofetal gene, gene product and uses therefor | Chemistry; Metallurgy | 55 | Expired |
| US5420628A | Video densitometer with determination of color composition | Physics | 51 | Expired |
| US6689398B2 | Triterpene compositions and methods for use thereof | Chemistry; Metallurgy | 49 | Expired |
| US6440393B1 | Carbon dioxide enhancement of inhalation therapy | Emerging Cross-Sectional Technologies | 46 | Expired |
| US6355777B1 | P43 antigen for the immunodiagnosis of canine ehrlichiosis and uses thereof | Human Necessities | 41 | Expired |
| US4915984A | Process for producing graphite films and fibers | Textiles; Paper | 41 | Expired |
| US6417223B1 | Tocopherols, tocotrienols, other chroman and side chain derivatives and uses therof | Chemistry; Metallurgy | 40 | Expired |
| US5853995A | Large scale genotyping of diseases and a diagnostic test for spinocerebellar ataxia type 6 | Chemistry; Metallurgy | 39 | Expired |
| US6392023B1 | Homologous 28-kilodalton immunodominant protein genes of Ehrlicha canis and uses thereof | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5583879A | Gallum nitride group compound semiconductor laser diode | Electricity | 38 | Expired |
| US5532154A | Mutated alpha virus | Chemistry; Metallurgy | 37 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.