Inventor · Wytheville, VA, US

Robert C. Ballard

13Patents
4h-index
19Co-inventors
57Inventor score

Filing activity: May 13, 1999 → Jul 15, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US9989299B1 Cooler Mechanical Engineering; Lighting; Heating 34 Active
US8111123B2 Disc wound transformer with improved cooling Emerging Cross-Sectional Technologies 9 Active
USD432371S Plant support General 9 Expired
US8492662B2 Arc-resistant dry type transformer enclosure having arc fault damper apparatus Electricity 4 Active
US8456838B2 Arc-resistant dry type transformer enclosure having arc channels Electricity 4 Active
US8375566B2 Method of providing arc-resistant dry type transformer enclosure Emerging Cross-Sectional Technologies 3 Active
USD800835S1 Notebook holder General 3 Active
US9214271B2 Method of providing arc-resistant dry type transformer enclosure Emerging Cross-Sectional Technologies 3 Active
US8610532B2 Corrosion-resistant coating system for a dry-type transformer core Electricity 2 Active
USD800836S1 Notepad holder General 1 Active
US11969103B2 Portable stadium chair Human Necessities 0 Active
US9847167B2 Enhanced track resistant dome structure for dry-type cast coil transformer Electricity 0 Active
US9214273B2 Radial drop winding for open-wound medium voltage dry type transformers with improved support structure Emerging Cross-Sectional Technologies 0 Active

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