Inventor · Middlefield, CT, US

Robert Astle

47Patents
8h-index
65Co-inventors
74Inventor score

Filing activity: Sep 29, 2005 → Sep 8, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US7638042B2 System for monitoring the performance of fluid treatment cartridges Chemistry; Metallurgy 72 Active
US8257594B2 Twin tank water-on-water filtration system Chemistry; Metallurgy 19 Active
US7922008B2 Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles Chemistry; Metallurgy 16 Active
US8119012B2 Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles Chemistry; Metallurgy 13 Active
US7712613B2 Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles Chemistry; Metallurgy 13 Active
USD969270S1 Filter cartridge General 10 Active
USD946702S1 Filter cartridge General 8 Active
USD948659S1 Filter cartridge General 8 Active
US11413560B2 Push filter with floating key lock Mechanical Engineering; Lighting; Heating 7 Active
USD948660S1 Filter cartridge General 6 Active
USD946699S1 Filter cartridge General 5 Active
US8216466B2 Counter top water filtration system Chemistry; Metallurgy 4 Active
US8206627B2 Systems and methods of making molded composite blocks Chemistry; Metallurgy 4 Active
USD946703S1 Filter cartridge General 4 Active
US11031710B2 Electrical connector and wire harness assembly with compression contacts Chemistry; Metallurgy 3 Active
USD946701S1 Filter cartridge General 2 Active
USD946700S1 Filter cartridge General 2 Active
US11273397B2 Filter base for electronic connection to mating filter housing assembly Chemistry; Metallurgy 1 Active
US8205755B2 Filter media Chemistry; Metallurgy 1 Active
US11958003B2 Push filter with floating key lock Performing Operations; Transporting 1 Active
US11326379B2 Filter interconnects utilizing magnetic shear force generated by coded polymagnets Fixed Constructions 1 Active
US11426685B2 Push filter with floating key lock Performing Operations; Transporting 1 Active
US10363502B2 Electromagnetic sensor for active monitoring of filter media within a filtration system Performing Operations; Transporting 1 Active
US11185804B2 Latch reset filter unit Emerging Cross-Sectional Technologies 1 Active
US12145088B2 Gravity-fed filter interconnect utilizing coded polymagnets Chemistry; Metallurgy 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.