Inventor · San Francisco, CA, US

Adam Simpson

20Patents
4h-index
9Co-inventors
56Inventor score

Filing activity: Oct 18, 1976 → Apr 30, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US8413617B2 High-efficiency two-piston linear combustion engine Mechanical Engineering; Lighting; Heating 24 Active
US8402931B2 High-efficiency linear combustion engine Emerging Cross-Sectional Technologies 15 Active
US4084805A Sheet handling device particularly useful as ledger feeder and stacker for accounting machines Emerging Cross-Sectional Technologies 14 Expired
US8662029B2 High-efficiency linear combustion engine Emerging Cross-Sectional Technologies 7 Active
US9719415B2 Energy storage and conversion in free-piston combustion engines Electricity 4 Active
US8997699B2 Linear free piston combustion engine with indirect work extraction via gas linkage Mechanical Engineering; Lighting; Heating 3 Active
US9567898B2 High-efficiency linear combustion engine Emerging Cross-Sectional Technologies 3 Active
US11578646B2 Energy storage and conversion in linear generators Electricity 2 Active
US10738688B2 Energy storage and conversion in free-piston combustion engines Electricity 2 Active
US8453612B2 High-efficiency linear combustion engine Mechanical Engineering; Lighting; Heating 1 Active
US10851708B2 High-efficiency linear combustion engine Emerging Cross-Sectional Technologies 0 Active
US11352947B2 Energy storage and conversion in linear generators Electricity 0 Active
US11867116B2 Energy storage and conversion in linear generators Electricity 0 Active
US11323280B2 Network node for network based multicast replication Electricity 0 Active
US10190490B2 Energy storage and conversion in free-piston combustion engines Electricity 0 Active
US10221759B2 High-efficiency linear combustion engine Emerging Cross-Sectional Technologies 0 Active
US12000331B2 High-efficiency linear generator Emerging Cross-Sectional Technologies 0 Active
US12421890B2 High-efficiency linear generator Emerging Cross-Sectional Technologies 0 Active
US10024231B2 High-efficiency linear combustion engine Emerging Cross-Sectional Technologies 0 Active
US11525391B2 High-efficiency linear generator Emerging Cross-Sectional Technologies 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.