E04H12/28 - CPC Classification Index

ClassID:

131978 ⎘

E04H12/28 - CPC Classification

Classification description:

Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures Chimney stacks, e.g. free-standing, or similar ducts

Recent Application in this class:

20240200776

PASS-THROUGH DEVICE FOR A CHIMNEY

20190331347

Advanced Waste Heat Recovery in Industrial Fired-Heaters

20190257530

ADVANCED WASTE HEAT RECOVERY IN INDUSTRIAL FIRED-HEATERS

20160312761

Transport of a tower of a wind turbine

20150345101

Reinforcement assemblies, fixtures, and methods

20150300039

Aggregate stack demolishing scaffold apparatus and method for demolishing aggregate stack using the apparatus

20150082743

Transport of a tower of a wind turbine

20130109287

CHIMNEY

20130034450

Wind power plant with modular tower system

20120178353

Anticorrosive dust-collecting energy-saving chimney

20120039018

Device for discharging an explosive gas

20100139181

Method for mounting in sections an annular tower for wind power generator, heliostatic power generator or chimney composed from three concrete segments or more

20100117353

Coupling flange assembly for connecting steel pipes

20080041009

Flangeless support structures

20060156681

Modular tower structure for eolic turbines and other applications