PowerGenix Systems, Inc.
29Patents
19Active
29Granted
41Portfolio score
Filing activity: Mar 15, 2002 → Jan 8, 2014 · 14 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7833663B2 | Method of manufacturing nickel zinc batteries | Emerging Cross-Sectional Technologies | 21 | Active |
| US6949310B2 | Leak proof pressure relief valve for secondary batteries | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6835499B2 | Negative electrode formulation for a low toxicity zinc electrode having additives with redox potentials positive to zinc potential | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6787265B2 | Positive and negative interactive electrode formulation for a zinc-containing cell having an alkaline electrolyte | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6818350B2 | Alkaline cells having low toxicity rechargeable zinc electrodes | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6797433B2 | Negative electrode formulation for a low toxicity zinc electrode having additives with redox potentials negative to zinc potential | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6811926B2 | Formulation of zinc negative electrode for rechargeable cells having an alkaline electrolyte | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7550230B2 | Electrolyte composition for nickel-zinc batteries | Emerging Cross-Sectional Technologies | 10 | Active |
| US8501351B2 | Pasted zinc electrode for rechargeable nickel-zinc batteries | Emerging Cross-Sectional Technologies | 9 | Active |
| US9337483B2 | Pasted nickel hydroxide electrode and additives for rechargeable alkaline batteries | Emerging Cross-Sectional Technologies | 8 | Active |
| US8703330B2 | Nickel zinc battery design | Emerging Cross-Sectional Technologies | 7 | Active |
| US6801017B2 | Charger for rechargeable nickel-zinc battery | Emerging Cross-Sectional Technologies | 7 | Expired |
| US9337683B2 | Controlling battery states of charge in systems having separate power sources | Emerging Cross-Sectional Technologies | 6 | Active |
| US7816030B2 | Electrolyte composition for nickel-zinc batteries | Emerging Cross-Sectional Technologies | 6 | Active |
| US6790559B2 | Alkaline cells having positive nickel hydroxide electrodes with fluoride salt additives | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8048558B2 | Cylindrical nickel-zinc cell with negative can | Emerging Cross-Sectional Technologies | 5 | Active |
| US8043748B2 | Pasted nickel hydroxide electrode for rechargeable nickel-zinc batteries | Emerging Cross-Sectional Technologies | 3 | Active |
| US7829221B2 | Cobalt containing positive electrode formulation for a nickel-zinc cell | Emerging Cross-Sectional Technologies | 3 | Active |
| US7033700B2 | Formulation of zinc negative electrode for rechargeable cells having an alkaline electrolyte | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8048566B2 | Nickel hydroxide electrode for rechargeable batteries | Emerging Cross-Sectional Technologies | 2 | Active |
| US8940430B2 | Metallic zinc-based current collector | Emerging Cross-Sectional Technologies | 2 | Active |
| US7931988B2 | Tin and tin-zinc plated substrates to improve Ni-Zn cell performance | Emerging Cross-Sectional Technologies | 1 | Active |
| US7255720B2 | Methods for production of zinc oxide electrodes for alkaline batteries | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8372542B2 | Tin and tin-zinc plated substrates including Cu3Sn and Cu6Sn5 to improve Ni-Zn cell performance | Emerging Cross-Sectional Technologies | 1 | Active |
| US9048488B2 | Pasted zinc electrode for rechargeable nickel-zinc batteries | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.