Zbigniew Tokarski
85Patents
12h-index
57Co-inventors
87Inventor score
Filing activity: Feb 16, 2000 → Mar 22, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6340548B1 | Organophotoreceptors for electrophotography featuring novel charge transport compounds | Physics | 61 | Expired |
| US7202002B2 | Hydrazone-based charge transport materials | Physics | 29 | Expired |
| US6689523B2 | Electrophotographic organophotoreceptors with novel charge transport compounds | Physics | 28 | Expired |
| US6864025B2 | Sulfonyldiphenylene-based charge transport compositions | Physics | 28 | Expired |
| US6835513B2 | Carbazole based charge transport compounds | Physics | 27 | Expired |
| US6696209B2 | Electrophotographic organophotoreceptors with novel charge transport compounds | Chemistry; Metallurgy | 25 | Expired |
| US7445877B2 | Charge transport materials having a central disulfane linkage | Physics | 22 | Expired |
| US6768010B1 | Organophotoreceptor with an epoxy-modified charge transport compound having an azine group | Physics | 18 | Expired |
| US7329722B2 | Polymeric charge transport materials having carbazolyl repeating units | Physics | 16 | Expired |
| US6749978B2 | Electrophotographic organophotoreceptors with novel charge transport compounds | Physics | 14 | Expired |
| US6890693B2 | Organophotoreceptor with an electron transport layer | Physics | 13 | Expired |
| US6905804B2 | Electrophotographic organophotoreceptors with novel charge transport materials | Chemistry; Metallurgy | 13 | Expired |
| US7029812B2 | Organophotoreceptor with charge transport compound having an epoxy group | Physics | 12 | Expired |
| US6899984B2 | Linked dihydrazone-based charge transport compounds | Physics | 12 | Expired |
| US7063928B2 | Electrophotographic organophotoreceptors with novel charge transport materials | Chemistry; Metallurgy | 11 | Expired |
| US7501216B2 | Azine-based charge transport materials | Chemistry; Metallurgy | 10 | Expired |
| US6955869B2 | Organophotoreceptor with a charge transport material having two azine groups | Physics | 10 | Expired |
| US7011917B2 | Organophotoreceptor with charge transport material having bis(9-fluorenone) azine groups | Physics | 10 | Expired |
| US7090953B2 | Organophotoreceptor with a charge transport compound having an epoxy group | Physics | 10 | Expired |
| US7094510B2 | Organophotoreceptor with a charge transport material having two (9-fluorenylidene)malononitrile groups | Chemistry; Metallurgy | 9 | Expired |
| US6964833B2 | Linked dihydrazone-based charge transport compounds | Chemistry; Metallurgy | 9 | Expired |
| US7291431B2 | Organophotoreceptor with charge transport compound having an epoxy group | Physics | 8 | Expired |
| US7244541B2 | Linked dihydrazone-based charge transport compounds | Chemistry; Metallurgy | 8 | Expired |
| US7045263B2 | Photoreceptor for electrophotography having a salt of an electron transport compound | Physics | 8 | Expired |
| US7037632B2 | Organophotoreceptor with charge transport material with fluorenone azine groups | Physics | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.