Holcroft Inc.
13Patents
0Active
13Granted
31Portfolio score
Filing activity: Jan 19, 1977 → Jan 31, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4288062A | Apparatus for control and monitoring of the carbon potential of an atmosphere in a heat-processing furnace | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4113009A | Heat exchanger core for recuperator | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4373702A | Jet impingement/radiant heating apparatus | Chemistry; Metallurgy | 20 | Expired |
| US4343395A | Roller hearth furnace | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4225121A | Energy efficient heat-treating furnace system | Chemistry; Metallurgy | 10 | Expired |
| US4445945A | Method of controlling furnace atmospheres | Chemistry; Metallurgy | 9 | Expired |
| US4093195A | Carburizing furnace | Chemistry; Metallurgy | 9 | Expired |
| US4432791A | Ceramic radiant tube heated aluminum melter and method of melting aluminium | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4330031A | Ceramic tube recuperator | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4174097A | Furnace for bright annealing of copper | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4160641A | Continuous furnace | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4165865A | Crucible melting furnace | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US5016860A | """No-nick"" part-handling apparatus and method" | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.