Amchem Products, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157
 
  
 
C23G CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS 112

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE31198 Method for cleaning aluminum at low temperaturesSep 23, 80Apr 05, 83[B08B, C23G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4994521 Persulfate activated autodepositing compositionExpiredJul 18, 88Feb 19, 91[C08L]
4886616 Aluminum surface cleaning agentExpiredJul 31, 87Dec 12, 89[C11D]
4859351 Lubricant and surface conditioner for formed metal surfacesExpiredJun 01, 87Aug 22, 89[C10M]
4851148 Method of controlling an aluminum surface cleaning compositionExpiredApr 03, 86Jul 25, 89[C11D]
4838957 Phosphate coatings for metal surfacesExpiredFeb 16, 88Jun 13, 89[C23C]
4800106 Gloss enhancement of autodeposited coatingsExpiredJun 19, 87Jan 24, 89[B05D]
4786336 Low temperature seal for anodized aluminum surfacesExpiredFeb 25, 86Nov 22, 88[C23C]
4780150 Corrosion inhibited acid cleanersExpiredMar 02, 87Oct 25, 88[C23G]
4762638 Alkaline cleaner for aluminumExpiredJul 13, 87Aug 09, 88[C11D]
4758621 Persulfate activated autodeposition bathExpiredOct 21, 83Jul 19, 88[C08L]
4756846 Alkaline tin-plate degreasing detergentExpiredMar 09, 87Jul 12, 88[C11D]
RE32661 Cleaning aluminum at low temperaturesExpiredJul 27, 84May 03, 88[C23C, C23G, C11D]
4737195 Activator-accelerator mixtures for alkaline paint stripper compositionsExpiredApr 01, 86Apr 12, 88[C09D, C11D, C23D]
4728456 Aluminum surface cleaning agentExpiredOct 30, 85Mar 01, 88[C11D]
4717431 Nickel-free metal phosphating composition and method for useExpiredFeb 25, 87Jan 05, 88[C23C]
4717497 Tin-plate degreasing detergentExpiredMar 08, 85Jan 05, 88[C11D]
4668305 Method for the production of chromium phosphate coatingsExpiredJan 07, 85May 26, 87[C23C]
4668421 Non-fluoride acid compositions for cleaning aluminum surfacesExpiredAug 06, 85May 26, 87[C11D]
4661385 Filtration stabilization of autodeposition bathsExpiredJun 04, 85Apr 28, 87[C23C]
4647347 Process and sealant compositions for sealing anodized aluminumExpiredJul 12, 85Mar 03, 87[C23C, C25D]

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