FRAUNHOFER-GESELSCHAFT
29Patents
8Active
29Granted
39Portfolio score
Filing activity: Dec 27, 1978 → May 29, 2019 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6141753A | Secure distribution of digital representations | Electricity | 292 | Expired |
| US7236610B1 | Authenticating executable code and executions thereof | Electricity | 49 | Expired |
| US4243692A | Process for the production of silicic acid heteropolycondensates useful as coating materials | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6843568B2 | Projection apparatus | Electricity | 30 | Expired |
| US4787473A | Sound attenuating box | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US4238590A | Process for the production of silicic acid heteropolycondensates useful as membranes and adsorbents | Chemistry; Metallurgy | 25 | Expired |
| US6080692A | High-strength, translucent mica glass-ceramics | Human Necessities | 20 | Expired |
| US4374933A | Method of preparation of porous membranes and adsorbents | Chemistry; Metallurgy | 20 | Expired |
| US5089122A | Device for the separation of fluid mixtures | Performing Operations; Transporting | 19 | Expired |
| US4374696A | Method of heat-sealing substrates | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7421586B2 | Protecting mobile code against malicious hosts | Physics | 16 | Expired |
| US4505985A | Membranes based on silicic acid heteropolycondensates and a process for their production | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6185513A | Data recorder | Physics | 12 | Expired |
| US6385321B1 | Reactive sound absorber | Physics | 7 | Expired |
| US5980681A | Process for treatment of metal workpiece surface by electrical discharges | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5578350A | Method for depositing a thin layer on a substrate by laser pulse vapor deposition | Chemistry; Metallurgy | 5 | Expired |
| US5118328A | Process for regenerating adsorbers | Performing Operations; Transporting | 5 | Expired |
| US5024102A | Device for testing trailer couplings under loading conditions resembling those occurring in use, preferably with inclusion of the construction for fixing the trailer coupling | Physics | 2 | Expired |
| US7070685B2 | Method and device for decontaminating water which contains metal and/or is radioactively contaminated | Chemistry; Metallurgy | 2 | Expired |
| US9527774B2 | High strength transparent ceramic using corundum powder and methods of manufacture | Chemistry; Metallurgy | 1 | Active |
| US5948717A | Dense silicon nitride composite material | Chemistry; Metallurgy | 1 | Expired |
| US11296054B2 | Power converter module and method for production thereof | Electricity | 0 | Active |
| US10928294B2 | Method for identifying and quantifying of emitting particles in systems | Physics | 0 | Active |
| US10556926B2 | Synthetic artificial peptides with antimicrobial effect | Human Necessities | 0 | Active |
| US6518396B1 | Method for influencing the optical properties of polymers | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.