Shaft or like vertical or substantially vertical furnaces; Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces; Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated; Rotary-drum furnaces, i.e. horizontal or slightly inclined; Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity; Bell-type furnaces; Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge; Crucible or pot furnaces; Tank furnaces; Fluidized-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion; Furnaces of a kind not covered by any preceding group; Combinations of furnaces of kinds not covered by a single preceding main group; Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction.
1. Pace of Invention.
Recent trends and patenting growth patterns.
2. Technology Overview.
Organization of patented inventions into broad and specific technology fields, based on the International Patent Classification system
3. Competitive Intelligence
Major patenting players.
Top inventors .
Key attorneys agents or attorney firms representing innovators.
4. Appendix A
Tabulation of all data used in the report.
Patenting activity for the last 20 years timeframe.
Listing of top 100 players, inventors and agents.
List of references.