Inventor · Maddux Spring, AR, US

Robert L. Long

25Patents
6h-index
24Co-inventors
69Inventor score

Filing activity: Jan 21, 1977 → Jan 9, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US6072576A On-line control of a chemical process plant Physics 102 Expired
US6479597B1 Raman analysis system for olefin polymerization control Emerging Cross-Sectional Technologies 18 Expired
US4383043A Magnesium assay with calmagite or eriochrome black T reagents Physics 15 Expired
USD652993S1 Glove General 15 Expired
US4111657A Creatinine assay and reagent system Emerging Cross-Sectional Technologies 10 Expired
US7116414B2 On-line measurement and control of polymer properties by raman spectroscopy Chemistry; Metallurgy 7 Expired
US8481798B2 Feedback and feedforward closed loop purity and recovery control Performing Operations; Transporting 5 Active
US6517335B1 Apparatus dewatering an elastomeric polymer Performing Operations; Transporting 4 Expired
US4348208A Uric acid assay and reagent system therefor Emerging Cross-Sectional Technologies 3 Expired
US9945587B2 Apparatus and method for hybrid water heating and air cooling and control thereof Emerging Cross-Sectional Technologies 2 Active
US7307257B2 Method and apparatus for on-line measurement of polymer properties Physics 2 Expired
US10041702B2 Apparatus and method for hybrid water heating and air cooling and control thereof Emerging Cross-Sectional Technologies 2 Active
US12313271B2 Overflow sensor assembly in temperature control systems Mechanical Engineering; Lighting; Heating 0 Active
US12305886B2 Heating systems with unhoused centrifugal fan and wraparound heat exchanger Mechanical Engineering; Lighting; Heating 0 Active
US10788241B2 Air conditioner with condensation drain assembly and improved filter rack Mechanical Engineering; Lighting; Heating 0 Active
US11530829B2 Overflow sensor assembly in temperature control systems Mechanical Engineering; Lighting; Heating 0 Active
US11906183B2 Overflow sensor assembly in temperature control systems Mechanical Engineering; Lighting; Heating 0 Active
US11530857B2 Air conditioning reheat systems and methods thereto Emerging Cross-Sectional Technologies 0 Active
US12135156B2 Air conditioning reheat systems and methods thereto Emerging Cross-Sectional Technologies 0 Active
US12235026B2 Combined air conditioning and water heating via expansion valve regulation Mechanical Engineering; Lighting; Heating 0 Active
US11828499B2 Interlaced microchannel heat exchanger systems and methods thereto Mechanical Engineering; Lighting; Heating 0 Active
US11493214B2 Termination block Physics 0 Active
US11585567B2 Air conditioner with condensation drain assembly and improved filter rack Mechanical Engineering; Lighting; Heating 0 Active
US11815298B2 Combined air conditioning and water heating via expansion valve regulation Mechanical Engineering; Lighting; Heating 0 Active
US12173936B2 Interlaced microchannel heat exchanger systems and methods thereto Mechanical Engineering; Lighting; Heating 0 Active

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