Patent assignee · SS · INDIVIDUAL

Ryozo Echigo

1Patents
0Active
1Granted
20Portfolio score

Filing activity: Jul 21, 1982 → Jul 21, 1982

Most-cited patents

PatentTitleAreaCited byStatus
US4479535A Recuperative radiant tube Emerging Cross-Sectional Technologies 17 Expired

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