Philip D. Heppner
64Patents
38h-index
43Co-inventors
84Inventor score
Filing activity: Dec 11, 1998 → Jun 13, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6194425A | Imidazonaphthyridines | Chemistry; Metallurgy | 254 | Expired |
| US6525064B1 | Sulfonamido substituted imidazopyridines | Chemistry; Metallurgy | 194 | Expired |
| US6545016B1 | Amide substituted imidazopyridines | Chemistry; Metallurgy | 190 | Expired |
| US6545017B1 | Urea substituted imidazopyridines | Chemistry; Metallurgy | 189 | Expired |
| US6656938B2 | Urea substituted imidazoquinoline ethers | Emerging Cross-Sectional Technologies | 165 | Expired |
| US6664265B2 | Amido ether substituted imidazoquinolines | Human Necessities | 165 | Expired |
| US6660735B2 | Urea substituted imidazoquinoline ethers | Human Necessities | 164 | Expired |
| US6660747B2 | Amido ether substituted imidazoquinolines | Human Necessities | 160 | Expired |
| US6670372B2 | Aryl ether substituted imidazoquinolines | Emerging Cross-Sectional Technologies | 159 | Expired |
| US6677347B2 | Sulfonamido ether substituted imidazoquinolines | Human Necessities | 159 | Expired |
| US6683088B2 | Sulfonamido ether substituted imidazoquinolines | Emerging Cross-Sectional Technologies | 159 | Expired |
| US6664260B2 | Heterocyclic ether substituted imidazoquinolines | Human Necessities | 154 | Expired |
| US6696465B2 | Sulfonamido substituted imidazopyridines | Chemistry; Metallurgy | 147 | Expired |
| US6797718B2 | Ether substituted imidazopyridines | Human Necessities | 131 | Expired |
| US7544697B2 | Pyrazolopyridines and analogs thereof | Chemistry; Metallurgy | 85 | Expired |
| US6514985B1 | Imidazonaphthyridines | Chemistry; Metallurgy | 82 | Expired |
| US7091214B2 | Aryl substituted Imidazoquinolines | Human Necessities | 81 | Expired |
| US7598382B2 | Aryl substituted imidazoquinolines | Human Necessities | 77 | Expired |
| US7648997B2 | Hydroxylamine substituted imidazoquinolines | Chemistry; Metallurgy | 74 | Expired |
| US6720334B2 | Urea substituted imidazopyridines | Chemistry; Metallurgy | 72 | Expired |
| US7115622B2 | Amido ether substituted imidazoquinolines | Human Necessities | 70 | Expired |
| US6720333B2 | Amide substituted imidazopyridines | Chemistry; Metallurgy | 67 | Expired |
| US7049439B2 | Urea substituted imidazoquinoline ethers | Emerging Cross-Sectional Technologies | 66 | Expired |
| US6989389B2 | Aryl ether substituted imidazoquinolines | Human Necessities | 66 | Expired |
| US7125890B2 | Ether substituted imidazopyridines | Human Necessities | 66 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.