Patent assignee · JP · COMPANY

Gen Engineering Co., Ltd.

2Patents
0Active
2Granted
24Portfolio score

Filing activity: May 5, 1980 → Oct 3, 1980

Most-cited patents

PatentTitleAreaCited byStatus
US4334315A Wireless transmitting and receiving systems including ear microphones Electricity 381 Expired
US4409435A Hearing aid suitable for use under noisy circumstance Electricity 31 Expired

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