Inventors list

Agents list

Assignees list

List by place

Classification tree browser

Top 100 Inventors

Top 100 Agents

Top 100 Assignees

Patent class list (only not empty are listed)

Drying and gas or vapor contact with solids

Subclass of: 034 - Drying and gas or vapor contact with solids

Deeper subclasses:

034245000 - MATERIAL TREATED BY ELECTROMAGNETIC ENERGY (16)
034282000 - PROCESS (138)
034523000 - APPARATUS (213)