Patent assignee · US · COMPANY

Hill Phoenix, Inc.

118Patents
116Active
118Granted
64Portfolio score

Filing activity: Dec 28, 1999 → Mar 12, 2024 · 14 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US7806543B2 Light system for a temperature controlled case Mechanical Engineering; Lighting; Heating 41 Active
US6411916B1 Food safety control method and apparatus Physics 39 Expired
US7913506B2 Free cooling cascade arrangement for refrigeration system Emerging Cross-Sectional Technologies 26 Active
US8925893B2 Lockdown device for refrigerated display cases Emerging Cross-Sectional Technologies 23 Active
US9657977B2 Cascade refrigeration system with modular ammonia chiller units Mechanical Engineering; Lighting; Heating 17 Active
US9157675B2 Insulated case construction Mechanical Engineering; Lighting; Heating 17 Active
US8631666B2 Modular CO2 refrigeration system Mechanical Engineering; Lighting; Heating 16 Active
US9470435B2 Modular CO2 refrigeration system Mechanical Engineering; Lighting; Heating 14 Active
USD943563S1 Single dual port network device General 14 Active
US9377236B2 CO2 refrigeration system with hot gas defrost Mechanical Engineering; Lighting; Heating 14 Active
US7681409B2 Curtain air admission assembly Human Necessities 13 Active
US9689590B2 CO2 refrigeration system with integrated air conditioning module Mechanical Engineering; Lighting; Heating 12 Active
US8286399B2 Structural insulated panel system Mechanical Engineering; Lighting; Heating 11 Active
US9541311B2 Cascade refrigeration system with modular ammonia chiller units Mechanical Engineering; Lighting; Heating 11 Active
US9664424B2 Cascade refrigeration system with modular ammonia chiller units Mechanical Engineering; Lighting; Heating 10 Active
US7918516B2 Refrigerator case shelf Human Necessities 10 Active
US8966934B2 Refrigeration system Mechanical Engineering; Lighting; Heating 9 Active
US9151521B2 Free cooling cascade arrangement for refrigeration system Mechanical Engineering; Lighting; Heating 9 Active
US8522500B1 Structural insulated panel system Mechanical Engineering; Lighting; Heating 8 Active
US8011192B2 Method for defrosting an evaporator in a refrigeration circuit Mechanical Engineering; Lighting; Heating 8 Active
US8845045B2 Door closing control and electrical connectivity system for refrigerated case Mechanical Engineering; Lighting; Heating 7 Active
US9410727B1 Systems and methods for defrosting an evaporator in a refrigeration system Mechanical Engineering; Lighting; Heating 7 Active
US8844308B2 Cascade refrigeration system with secondary chiller loops Mechanical Engineering; Lighting; Heating 6 Active
US8863541B2 Air distribution system for temperature-controlled case Human Necessities 6 Active
US8875462B2 Structural insulated panel system Mechanical Engineering; Lighting; Heating 5 Active

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