AMTECH, LLC
24Patents
1Active
24Granted
38Portfolio score
Filing activity: Jan 9, 1976 → Sep 28, 2009 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5850187A | Integrated electronic tag reader and wireless communication link | Physics | 422 | Expired |
| US5485520A | Automatic real-time highway toll collection from moving vehicles | Physics | 317 | Expired |
| US5030807A | System for reading and writing data from and into remote tags | Physics | 278 | Expired |
| US6752084B1 | Ammunition articles with plastic components and method of making ammunition articles with plastic components | Mechanical Engineering; Lighting; Heating | 262 | Expired |
| US4739328A | System for identifying particular objects | Physics | 256 | Expired |
| US5737710A | Automated vehicle parking system for a plurality of remote parking facilities | Physics | 175 | Expired |
| US5828693A | Spread spectrum frequency hopping reader system | Electricity | 131 | Expired |
| US4816839A | Transponder antenna | Electricity | 114 | Expired |
| US4786907A | Transponder useful in a system for identifying objects | Physics | 102 | Expired |
| US4782345A | Transponder antenna | Electricity | 86 | Expired |
| US5771021A | Transponder employing modulated backscatter microstrip double patch antenna | Electricity | 82 | Expired |
| US4864158A | Rapid signal validity checking apparatus | Physics | 67 | Expired |
| US5504485A | System for preventing reading of undesired RF signals | Physics | 65 | Expired |
| US5510795A | Single antenna location and direction finding system | Physics | 40 | Expired |
| US5825329A | Modulated backscatter microstrip patch antenna | Electricity | 37 | Expired |
| US5479160A | Low level RF threshold detector | Physics | 24 | Expired |
| US4745643A | Modular sleeping unit for ship crew or the like | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5903937A | Bathroom module accessible to wheeled assemblies | Human Necessities | 20 | Expired |
| US6499260B2 | Portable greenhouse structure and method and apparatus for assembling same | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4033781A | Fiber reinforced structural material | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7360776B2 | Method and apparatus for rebound control | Performing Operations; Transporting | 10 | Expired |
| US5884779A | Hanging rack apparatus for printed circuit panels | Electricity | 9 | Expired |
| US5438713A | Seamless bathroom module for a marine vessel | Fixed Constructions | 8 | Expired |
| US8152228B2 | Vehicle mounting collar | Performing Operations; Transporting | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.