Inventor · Johnston, IA, US

Mark E. Barker

29Patents
7h-index
41Co-inventors
69Inventor score

Filing activity: Dec 13, 1994 → Nov 20, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US11636771B2 Stackable housing containers and related systems Emerging Cross-Sectional Technologies 23 Active
US5690019A Bread bun mold Emerging Cross-Sectional Technologies 12 Expired
US9891629B2 Autonomous robotic agricultural machine and system thereof Physics 11 Active
USD604609S1 Attachable dispensing spout General 10 Expired
US7766576B2 Implement frame tube joint with weldable connector Emerging Cross-Sectional Technologies 8 Expired
US10252285B2 Mobile drift sensor for agricultural spraying Performing Operations; Transporting 8 Active
US8746589B2 Boom assembly joints Fixed Constructions 7 Active
US10905057B2 Thermal imaging drift sensor for agricultural spraying Physics 6 Active
US9828771B2 Boom assembly joints Fixed Constructions 6 Active
US9258989B2 Boom assembly joints Fixed Constructions 5 Active
US10440942B2 Sprayer systems with drop apparatuses having retractable arms Performing Operations; Transporting 5 Active
US8646702B2 Boom fold structure Human Necessities 4 Active
US12020582B2 Stackable housing containers and related systems Emerging Cross-Sectional Technologies 3 Active
US6942163B2 Implement with plumbing lines through a main frame tube Performing Operations; Transporting 2 Expired
US11818977B2 System and method for intercrop planting Physics 2 Active
US11618563B2 Self-aligning liquid coupler systems and related methods Performing Operations; Transporting 1 Active
US10966364B2 Work vehicle with row unit having variable steering angle Human Necessities 1 Active
US9072213B2 Implement frame tube joint with weldable connector Emerging Cross-Sectional Technologies 1 Active
US10255770B2 System and method for nutrient leakage detection Physics 1 Active
US10820585B2 Sprayer systems with retractable drop apparatuses Performing Operations; Transporting 0 Active
US12356884B2 Planter having a seeding system Human Necessities 0 Active
US12213400B2 System and method for intercrop planting Physics 0 Active
US12245543B2 Planter having a seeding system Human Necessities 0 Active
US11412654B2 Residue shield for row cleaner on an agricultural machine Human Necessities 0 Active
US11825762B2 Powered clearing-disks, control system, and method of use Emerging Cross-Sectional Technologies 0 Active

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