Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G03B 21/132

Overhead projectors, i.e. capable of projecting hand-writing or drawing during action (epidiascopic projectors G03B21/08)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

CPC: Overhead projectors, i.e. capable of projecting hand-writing or drawing during action (epidiascopic projectors G03B21/08)

Full Title

Full titles differ between systems:

IPC:

Projectors or projection-type viewers; Accessories therefor > Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

CPC:

Projectors or projection-type viewers; Accessories therefor (devices for changing pictures G03B23/00) > Overhead projectors, i.e. capable of projecting hand-writing or drawing during action (epidiascopic projectors G03B21/08)

No child classifications to compare. This is a leaf node in both 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