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PCE
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CPC Subgroup
B28B 21/82

built-up from several parts; Multiple moulds; Moulds with adjustable parts

Full Title

Methods or machines specially adapted for the production of tubular articles > Moulds > built-up from several parts; Multiple moulds; Moulds with adjustable parts

1 direct subcode

Child Classifications

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  • B28B 21/84 Moulds with one or more pivotable parts

Top Applicants

Top 10 applicants by patent filingsfor class B28, 2013–2023, worldwide · Source: EPO PATSTAT

  1. DISCO CORPORATION JP 1,471
  2. HILTI LI 575
  3. CORNING US 544
  4. MITSUBOSHI DIAMOND INDUSTRIAL COMPANY JP 518
  5. UNITED STATES GYPSUM COMPANY US 485
  6. DISCO ABRASIVE SYSTEM 459
  7. GE (GENERAL ELECTRIC COMPANY) US 454
  8. MITSUBOSHI DIAMOND INDUSTRIAL COMPANY 439
  9. DISCO CORPORATION 403
  10. NGK INSULATORS JP 308