Maxdem Incorporated
37Patents
2Active
37Granted
40Portfolio score
Filing activity: Dec 27, 1983 → Dec 27, 2005 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5403675A | Sulfonated polymers for solid polymer electrolytes | Emerging Cross-Sectional Technologies | 99 | Expired |
| US5869592A | Macromonomers having reactive side groups | Chemistry; Metallurgy | 59 | Expired |
| US4945257A | Electrically settable resistance device | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5886130A | Polyphenylene co-polymers | Chemistry; Metallurgy | 55 | Expired |
| US5227457A | Rigid-rod polymers | Chemistry; Metallurgy | 46 | Expired |
| US6087467A | Rigid-rod polymers | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5496893A | Macromonomers having reactive side groups | Chemistry; Metallurgy | 28 | Expired |
| US5670564A | Macromonomers having reactive end groups | Chemistry; Metallurgy | 28 | Expired |
| US4475994A | Method and apparatus for separating oxygen from a gaseous mixture | Performing Operations; Transporting | 27 | Expired |
| US5668245A | Polymers with heterocyclic side groups | Chemistry; Metallurgy | 26 | Expired |
| US5646231A | Rigid-rod polymers | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5654392A | Rigid-rod polymers | Electricity | 22 | Expired |
| US5827927A | Macromonomers having reactive end groups | Chemistry; Metallurgy | 22 | Expired |
| US5824744A | Macromonomers having reactive end groups | Chemistry; Metallurgy | 21 | Expired |
| US5760131A | Rigid-rod polymers | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5565543A | Rigid-rod polymers | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5976437A | Rigid-rod polymers | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5659005A | Rigid-rod polymers | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5539048A | Macromonomers having reactive side groups | Chemistry; Metallurgy | 19 | Expired |
| US5756581A | Rigid-rod polymers | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5721335A | Rigid-rod polymers | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5830945A | Macromonomers having reactive side groups | Chemistry; Metallurgy | 12 | Expired |
| US5646232A | Rigid-rod polymers | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5858907A | Nickel phosphite catalysts | Performing Operations; Transporting | 12 | Expired |
| US5789521A | Rigid-rod polymers | Emerging Cross-Sectional Technologies | 10 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.