Patent assignee · US · COMPANY

QuantumSphere, Inc.

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10Patents
9Active
10Granted
47Portfolio score

Filing activity: May 6, 2004 → Nov 20, 2013 · 7 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US7282167B2 Method and apparatus for forming nano-particles Performing Operations; Transporting 48 Expired
US7955755B2 Compositions of nanometal particles containing a metal or alloy and platinum particles Emerging Cross-Sectional Technologies 11 Active
US7700214B1 Metal hydride fuel cell cartridge and electrolyzer electrode Emerging Cross-Sectional Technologies 5 Active
US7713043B2 Apparatus for uniform feeding of powders Performing Operations; Transporting 2 Active
US7803295B2 Method and apparatus for forming nano-particles Performing Operations; Transporting 1 Active
US8211594B2 Compositions of nanometal particles containing a metal or alloy and platinum particles Emerging Cross-Sectional Technologies 1 Active
US9272920B2 System and method for ammonia synthesis Emerging Cross-Sectional Technologies 1 Active
US7897294B2 Nano-material catalyst device Emerging Cross-Sectional Technologies 0 Active
US7709127B2 Electro-catalytic recharging composition Emerging Cross-Sectional Technologies 0 Active
US8500427B2 Method and apparatus for forming nano-particles Performing Operations; Transporting 0 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.