Patent assignee · JP · COMPANY

Citizen Holdings Co., Ltd.

458Patents
379Active
458Granted
57Portfolio score

Filing activity: Sep 7, 2000 → Aug 2, 2016 · 220 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US7806587B2 Electronic clinical thermometer and method of producing the same Emerging Cross-Sectional Technologies 449 Expired
US7787077B2 Liquid crystal display apparatus Physics 114 Expired
USD640145S1 Wrist watch General 104 Expired
USD667316S1 Wrist watch General 84 Active
USD669041S1 Light-emitting diode General 59 Active
USD658511S1 Wrist watch General 52 Expired
USD645417S1 Light-emitting diode General 40 Expired
USD720240S1 Wrist watch General 40 Active
USD640144S1 Wrist watch case with band General 39 Expired
USD719850S1 Wrist watch General 38 Active
USD690208S1 Wrist watch case with band General 38 Active
USD549598S1 Wrist watch General 36 Expired
USD668162S1 Wrist watch General 36 Active
USD618119S1 Wrist watch body General 35 Expired
USD555516S1 Wrist watch General 34 Expired
USD717668S1 Wrist watch General 34 Active
US7995178B2 Liquid-crystal-display panel and barcode reading system using the same Physics 33 Active
USD762492S1 Wrist watch General 32 Active
USD762126S1 Wrist watch General 31 Active
US8564633B2 Thermal printer Performing Operations; Transporting 31 Active
US8037755B2 Physical quantity sensor Physics 30 Active
USD761903S1 Printer General 28 Active
USD668557S1 Wrist watch case with band General 28 Active
USD653629S1 Light-emitting diode General 27 Expired
US9293674B2 Light emitting device including light emitting element, outer connection electrodes and resin layer Electricity 25 Active

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