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AMCHEM PROD

Overview
  • Total Patents
    1,390
About

AMCHEM PROD has a total of 1,390 patent applications. Its first patent ever was published in 1949. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets surface technology and coating, basic materials chemistry and machines are NIHON PARKERIZING, NIPPON BACALAIJINGU CO LTD and PARKER STE CONTINENTALE.

Patent filings per year

Chart showing AMCHEM PRODs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hall Wilbur S 55
#2 Waldrum John E 52
#3 Steinbrecher Lester 41
#4 Dollman David Y 31
#5 Dollman David Yeats 30
#6 Steinbrecher L 21
#7 Hess Susan V 19
#8 Evans Wilbur F 18
#9 Gardner George S 15
#10 Douty Alfred 15

Latest patents

Publication Filing date Title
EP0310103A1 Pretreatment process for aluminium
US4762638A Alkaline cleaner for aluminum
US4800106A Gloss enhancement of autodeposited coatings
US4780150A Corrosion inhibited acid cleaners
US4717431A Nickel-free metal phosphating composition and method for use
EP0201864A2 Alkaline cleaner for aluminum
US4707273A Manganese removal from aqueous industrial waste effluents
ZA8603258B Alkaline cleaner for aluminum
US4737195A Activator-accelerator mixtures for alkaline paint stripper compositions
EP0196072A2 Iodine compound activation of autodepositing baths
ZA8601732B Low temperature seal for anodized aluminum surfaces
US4786336A Low temperature seal for anodized aluminum surfaces
BR8506251A Self-deposit composition, aqueous concentrate, process to form a self-deposit coating and self-deposit coating
US4668421A Non-fluoride acid compositions for cleaning aluminum surfaces
ZA8505909B Sealant compositions for anodized aluminum
US4647480A Use of additive in aqueous cure of autodeposited coatings
US4647347A Process and sealant compositions for sealing anodized aluminum
US4661385A Filtration stabilization of autodeposition baths
AU4295885A Metal treatment
ZA8503265B Metal treatment