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DIFF Subgroup
G03B 21/58

collapsible, e.g. foldable; of variable area

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Projectors or projection-type viewers; Accessories therefor > Accessories > Projection screens > collapsible, e.g. foldable; of variable area

CPC:

Projectors or projection-type viewers; Accessories therefor (devices for changing pictures G03B23/00) > Accessories > Projection screens > collapsible, e.g. foldable; of variable area

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 2014.

Child Classifications

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  • G03B 21/585 Inflatable screens since 2014 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G03,2013–2023, worldwide · Source: EPO PATSTAT

  1. CANON 31,416
  2. CANON JP 17,469
  3. KYOCERA DOCUMENT SOLUTIONS 9,845
  4. RICOH COMPANY 9,807
  5. ASML NETHERLANDS NL 9,427
  6. FUJIFILM JP 7,225
  7. KONICA MINOLTA CORPORATION 7,216
  8. FUJI XEROX COMPANY 5,711
  9. CARL ZEISS SMT DE 4,971
  10. RICOH COMPANY JP 4,123

Top Applicants (CPC)

Class G03,2013–2023, worldwide · Source: EPO PATSTAT

  1. CANON JP 19,215
  2. CANON 12,916
  3. ASML NETHERLANDS NL 10,000
  4. FUJIFILM JP 7,814
  5. SAMSUNG ELECTRONICS COMPANY KR 5,181
  6. CARL ZEISS SMT DE 5,079
  7. RICOH COMPANY JP 4,343
  8. LG INNOTEK COMPANY KR 4,054
  9. KYOCERA DOCUMENT SOLUTIONS 3,812
  10. KYOCERA DOCUMENT SOLUTIONS JP 3,682