Patent assignee · US · COMPANY

Edtech Co., Ltd.

7Patents
0Active
7Granted
28Portfolio score

Filing activity: Nov 8, 1988 → Apr 5, 2000

Most-cited patents

PatentTitleAreaCited byStatus
US5048784A Adjustable inset bracket Human Necessities 72 Expired
US4976407A Adjustable wrist support Human Necessities 62 Expired
US4969403A Automatic vertically adjustable work surface Human Necessities 45 Expired
US5083514A Automatic vertically adjustable work surface Human Necessities 28 Expired
US4987835A Automatic vertically adjustable work surface Human Necessities 24 Expired
US4881471A Vertically adjustable, retrofittable workstation Human Necessities 21 Expired
US6781581B1 Apparatus for interfacing timing information in digital display device Physics 3 Expired

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