Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Main Group
F17D 3/00

Arrangements for supervising or controlling working operations

7 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • F17D 3/01 for controlling, signalling, or supervising the conveyance of a product
  • F17D 3/10 for taking out the product in the line (sampling in general, examining the physical or chemical properties of materials G01N)
  • F17D 3/12 for injecting a composition into the line
  • F17D 3/16 for eliminating particles in suspension (from liquids by sedimentation B01D21/00; separation by filtration or otherwise B01D24/00 - B01D51/00; centrifugal apparatus B04)
  • F17D 3/18 for measuring the quantity of conveyed product (measuring volume or volume flow, in general G01F)

Top Applicants

Top 10 applicants by patent filingsfor class F17, 2013–2023, worldwide · Source: EPO PATSTAT

  1. GAZ TRANSPORT ET TECHNIGAZ FR 1,718
  2. L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,633
  3. DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 1,570
  4. SAMSUNG HEAVY INDUSTRIES KR 1,174
  5. HYUNDAI HEAVY INDUSTRIES COMPANY KR 988
  6. LINDE DE 757
  7. ROBERT BOSCH DE 696
  8. BMW (BAYERISCHE MOTOREN WERKE) DE 523
  9. TOYOTA MOTOR CORPORATION JP 515
  10. KAWASAKI HEAVY IND JP 456