ClassID:

120475

C23C22/365 - CPC Classification

Classification description:

Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates containing also manganese cations containing also zinc and nickel cations

Recent Application in this class:
#1
20220119957
2022-04-21

Alternative composition and alternative method for effectively phosphating metal surfaces

#2
20210062346
2021-03-04

PROCESS FOR SELECTIVE PHOSPHATING OF A COMPOSITE METAL CONSTRUCTION

#3
20200199758
2020-06-25

Method for nickel-free phosphating metal surfaces

#4
20200032403
2020-01-30

Method for zinc phosphating metal components in series so as to form layers

#5
20200032402
2020-01-30

Method for zinc phosphating metal components in series in a sludge-free manner so as to form layers

#6
20190127854
2019-05-02

Method for nickel-free phosphating metal surfaces

#7
20180334748
2018-11-22

METHOD FOR SPECIFICALLY ADJUSTING THE ELECTRICAL CONDUCTIVITY OF CONVERSION COATINGS

#8
20180112314
2018-04-26

Method for specifically adjusting the electrical conductivity of conversion coatings

#9
20180112313
2018-04-26

Method for nickel-free phosphating metal surfaces

#10
20140305903
2014-10-16

Method for manufacturing a bonded body of galvanized steel sheet and adherend

#11
20130202797
2013-08-08

Method for selectively phosphating a composite metal construction

#12
20120177946
2012-07-12

Zr-/Ti-containing phosphating solution for passivation of metal composite surfaces

#13
20120177826
2012-07-12

Method for coating metallic surfaces with an aqueous composition

#14
20110198000
2011-08-18

Process for coating metallic surfaces

#15
20110189488
2011-08-04

Process for coating metallic surfaces with an aqueous composition, and this composition

#16
20110180186
2011-07-28

METHOD AND SOLUTION FOR COATING METALLIC SURFACES WITH A PHOSPHATING SOLUTION CONTAINING HYDROGEN PEROXIDE, METALLIC OBJECT PRODUCED AND USE OF THE OBJECT

#17
20110008644
2011-01-13

BONDED BODY OF GALVANIZED STEEL SHEET AND ADHEREND, AND MANUFACTURING METHOD THEREOF

#18
20090255608
2009-10-15

Zr-/Ti-containing phosphating solution for passivation of metal composite surfaces

#19
20090071573
2009-03-19

PHOSPHATING SOLUTION WITH HYDROGEN PEROXIDE AND CHELATING CARBOXYLIC ACIDS

#20
20080314479
2008-12-25

HIGH MANGANESE COBALT-MODIFIED ZINC PHOSPHATE CONVERSION COATING

#21
20080138615
2008-06-12

Method for Coating Metallic Surfaces with an Aqueous Composition and Said Composition

#22
20070119520
2007-05-31

METHOD FOR TREATING OR PRE-TREATING COMPONENTS COMPRISING ALUMINUM SURFACES

#23
20060289089
2006-12-28

Method for treatment of chemically passivated galvanized surfaces to improve paint adhesion

#24
20060278307
2006-12-14

Method and solution for coating metal surfaces with a posphating solution containing water peroxide, produced metal object and use of said object

#25
20060113005
2006-06-01

Method for surface treatment of aluminum alloy

#26
20060086282
2006-04-27

Phosphate conversion coating and process

#27
20050205166
2005-09-22

Method for coating metallic surfaces

#28
20050145303
2005-07-07

Multiple step conversion coating process