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DIFF Main Group
B28B 1/00

Producing shaped articles from the material (using presses B28B3/00; shaping on moving conveyors B28B5/00; producing tubular articles B28B21/00 )

Introduced: September 1968

Title

Titles differ between systems:

IPC: Producing shaped articles from the material

CPC: Producing shaped articles from the material (using presses B28B3/00; shaping on moving conveyors B28B5/00; producing tubular articles B28B21/00 )

Full Title

Full titles differ between systems:

IPC:

Producing shaped articles from the material

CPC:

Producing shaped articles from the material (using presses B28B3/00; shaping on moving conveyors B28B5/00; producing tubular articles B28B21/00 )

Of 20 combined children, 14 exist in both systems.

6 codes are CPC-only extensions.

8 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B28B 1/001 CPC only CPC only
  • B28B 1/002 CPC only CPC only
  • B28B 1/004 CPC only CPC only
  • B28B 1/005 CPC only CPC only
  • B28B 1/007 CPC only CPC only
  • B28B 1/008 CPC only CPC only
  • B28B 1/20 by centrifugal or rotational casting (slip-casting involving rotation of the mould B28B1/28; for molten material B28B1/54) IPC+CPC Available in IPC and CPC
  • B28B 1/24 by injection moulding IPC+CPC Available in IPC and CPC
  • B28B 1/29 by profiling or strickling the material in open moulds or on moulding surfaces IPC+CPC Available in IPC and CPC
  • B28B 1/48 by removing material from solid section preforms for forming hollow articles, e.g. by punching or boring IPC+CPC Available in IPC and CPC
  • B28B 1/54 specially adapted for producing articles from molten material, e.g. slag (chemical aspects C04B ) IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B28,2013–2023, worldwide · Source: EPO PATSTAT

  1. MITSUBOSHI DIAMOND INDUSTRIAL COMPANY 868
  2. QINGDAO GAOCE TECHNOLOGY COMPANY 678
  3. DISCO CORPORATION JP 500
  4. ZHOU ZHAODI 500
  5. MITSUBOSHI DIAMOND INDUSTRIAL COMPANY JP 456
  6. HILTI LI 455
  7. CORNING US 407
  8. UNITED STATES GYPSUM COMPANY US 375
  9. ZHENGZHOU YUAN DONG REFRACTORIES COMPANY 370
  10. HUNAN SANY KUAIERJU RESIDENTIAL INDUSTRY COMPANY 351

Top Applicants (CPC)

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