Patent assignee · US · COMPANY

Phillips Engineering Co.

9Patents
0Active
9Granted
27Portfolio score

Filing activity: Nov 18, 1991 → Dec 14, 1999

Most-cited patents

PatentTitleAreaCited byStatus
US5367884A Generator-absorber-heat exchange heat transfer apparatus and method and use thereof in a heat pump Emerging Cross-Sectional Technologies 40 Expired
US5271235A High efficiency absorption cycle of the gax type Emerging Cross-Sectional Technologies 12 Expired
US6179568A Piston pump and method of reducing vapor lock Mechanical Engineering; Lighting; Heating 9 Expired
US6024542A Piston pump and method of reducing vapor lock Mechanical Engineering; Lighting; Heating 9 Expired
US5579652A Generator-absorber-heat exchange heat transfer apparatus and method and use thereof in a heat pump Emerging Cross-Sectional Technologies 9 Expired
US5564908A Fluid pump having magnetic drive Emerging Cross-Sectional Technologies 6 Expired
US5811026A Corrosion inhibitor for aqueous ammonia absorption system Emerging Cross-Sectional Technologies 5 Expired
US5782097A Generator-absorber-heat exchange heat transfer apparatus and method and use thereof in a heat pump Emerging Cross-Sectional Technologies 4 Expired
US5570584A Generator-Absorber heat exchange transfer apparatus and method using an intermediate liquor Emerging Cross-Sectional Technologies 3 Expired

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