Patent assignee · US · COMPANY

ACT, INC.

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34Patents
25Active
34Granted
51Portfolio score

Filing activity: Jun 29, 1990 → Jun 11, 2020 · 7 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US5555676A Vertical planter apparatus and method Human Necessities 112 Expired
US5363594A Vertical gardens Human Necessities 79 Expired
US6962162B2 Method for operating a multi family/commercial plumbing system Emerging Cross-Sectional Technologies 63 Expired
US5139607A Alkaline stripping compositions Chemistry; Metallurgy 28 Expired
US5037160A Flooring remover Fixed Constructions 18 Expired
US5640353A External compensation apparatus and method for fail bit dynamic random access memory Physics 16 Expired
US7779857B2 Hot water system Emerging Cross-Sectional Technologies 14 Active
US5484533A Method for the stabilization and detoxification of waste material Emerging Cross-Sectional Technologies 12 Expired
US10268676B1 Automated detection of linguistic uniqueness Physics 10 Active
US10665122B1 Application of semantic vectors in automated scoring of examination responses Physics 7 Active
USD882777S1 Diaper accessory General 5 Active
US8834173B2 Method and system for scripted testing Physics 5 Active
USD859648S1 Diaper accessory General 4 Active
US8327873B2 Temperature back flow control valve Emerging Cross-Sectional Technologies 4 Active
US5644549A Apparatus for accessing an extended data output dynamic random access memory Physics 3 Expired
US10198428B2 Methods and systems for textual analysis Physics 2 Active
USD718937S1 Bag with face decoration General 2 Active
USD712150S1 Face decoration for a bag General 1 Active
US10529245B2 Methods for improving test efficiency and accuracy in a computer adaptive test (CAT) Physics 1 Active
US5244952A Polyvinyl butyral pellicle compositions Chemistry; Metallurgy 1 Expired
USD730056S1 Hood of a bag General 1 Active
US10741093B2 Automated determination of degree of item similarity in the generation of digitized examinations Physics 1 Active
US10492960B2 Diaper system and flap Human Necessities 1 Active
US11631338B2 Deep knowledge tracing with transformers Physics 1 Active
US11494560B1 System and methodology for computer-facilitated development of reading comprehension test items through passage mapping Physics 1 Active

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