ClassID:

119504

C22B41/00 - CPC Classification

Classification description:

Obtaining germanium

Recent Application in this class:
#1
20250019795
2025-01-16

Method for extracting germanium based on acid decomposition

#2
20240344177
2024-10-17

METHOD FOR RECOVERING GERMANIUM

#3
20240110259
2024-04-04

METHOD FOR CO-PRODUCING BLISTER COPPER BY ENRICHING GERMANIUM AND INDIUM FROM A COPPER SULFIDE ORE

#4
20230024705
2023-01-26

System and method for producing critical minerals

#5
20190047870
2019-02-14

Method for preparing silicon and/or germanium nanowires

#6
20180251873
2018-09-06

Processes for preparing various metals and derivatives thereof from copper- and sulfur-containing material

#7
20180137947
2018-05-17

Processes for generating germanium-68 with reduced volatiles

#8
20170121790
2017-05-04

Method of extracting germanium from germanium deposit using thermal reduction process

#9
20160298210
2016-10-13

Method and apparatus for secondary enrichment and recovery of germanium from low-grade lignite germanium concentrates with by microwave heating in vacuum

#10
20130192424
2013-08-01

Method for treating a solution containing zinc sulphate

#11
20110167961
2011-07-14

METHOD FOR PURIFYING MATERIAL CONTAINING METALLOID ELEMENT OR METAL ELEMENT AS MAIN COMPONENT

#12
20100193737
2010-08-05

Method for preparing nanocrystalline germanium in GeOand freestanding germanium nanoparticles

#13
20080311027
2008-12-18

Process for the production of Ge by reduction of GeClwith liquid metal

#14
20070274886
2007-11-29

REMOVAL AND RECOVERY OF DEPOSITS FROM COAL GASIFICATION SYSTEMS

#15
20070095170
2007-05-03

Method of manufacturing germanium-containing solution from yellow soil

#16
20050191854
2005-09-01

Process for purification of germane

#17
20050072679
2005-04-07

Germanium and germanium alloy nanoparticle and method for producing the same

#18
19270603
2026-04-14

Comprehensive utilization method of beneficiation-metallurgy-chemical combination for germanium-rich lignite