F22B7/12 - CPC Classification Index

ClassID:

155457 ⎘

F22B7/12 - CPC Classification

Classification description:

Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body with auxiliary fire tubes; Arrangement of header boxes providing for return diversion of flue gas flow

Recent Application in this class:

20230349546

2023-11-02

Boiler Tube Insert and Boiler Tubes Having Inserts

20230184424

2023-06-15

DOWNWARD MOBILE GASIFICATION BOILER FOR SURFACE GAS PHASE COMBUSTION AND PYROLYSIS OF BIOMASS BRIQUETTE

20190186730

2019-06-20

Method and apparatus for waste heat recovery and emission reduction

20180209664

2018-07-26

System, apparatus and method for heating homes and other buildings

20180128479

2018-05-10

Method and apparatus for firetube boiler and ultra low NOx burner

20080271612

2008-11-06

Steam cooker and related superheater

20060081271

2006-04-20

Steam humidifier and method

20060065266

2006-03-30

Steam cooker and related superheater

20050092672

2005-05-05

Waterboiler system with solids removal apparatus

#10

20050073064

2005-04-07

Steam humidifier and method

#11

13736155

2015-02-17

Steam boiler