Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
C09D 161/32

Modified amine-aldehyde condensates

Full Title

Coating compositions based on condensation polymers of aldehydes or ketones (with polyalcohols C09D159/00; with polynitriles C09D177/00); Coating compositions based on derivatives of such polymers > Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with amino phenols C09D161/04) > Modified amine-aldehyde condensates

Filing statistics

CPC C09D 161/32 belongs to the parent subclass C09D, which recorded 321,075 patent applications worldwide between 2013 and 2023. Annual filings grew from 21,074 in 2013 to 22,354 in 2023 (+6%), peaking at 36,931 applications in 2016. The most active applicants in class C09 are LG CHEM (7,954 applications), HALLIBURTON ENERGY SERVICES GROUP (6,584 applications) and NITTO DENKO CORPORATION (6,500 applications).

Source: EPO PATSTAT, worldwide filings

Top Applicants

Top 10 applicants by patent filingsfor class C09, 2013–2023, worldwide · Source: EPO PATSTAT

  1. LG CHEM KR 7,954
  2. HALLIBURTON ENERGY SERVICES GROUP US 6,584
  3. NITTO DENKO CORPORATION JP 6,500
  4. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,490
  5. DOW GLOBAL TECHNOLOGIES US 6,324
  6. FUJIFILM JP 5,832
  7. MERCK PATENT DE 5,481
  8. BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,147
  9. SAMSUNG DISPLAY KR 5,105
  10. NITTO DENKO CORPORATION 3,584