Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
H04N 13/302

for viewing without the aid of special glasses, i.e. using autostereoscopic displays

Full Title

Stereoscopic video systems; Multi-view video systems; Details thereof > Image reproducers (optical systems for producing stereoscopic or other three-dimensional [3D] effects G02B30/00) > for viewing without the aid of special glasses, i.e. using autostereoscopic displays

6 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • H04N 13/305 using lenticular lenses, e.g. arrangements of cylindrical lenses
  • H04N 13/307 using fly-eye lenses, e.g. arrangements of circular lenses
  • H04N 13/317 using slanted parallax optics
  • H04N 13/32 using arrays of controllable light sources; using moving apertures or moving light sources
  • H04N 13/322 using varifocal lenses or mirrors

Top Applicants

Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. HUAWEI TECHNOLOGIES COMPANY CN 101,476
  2. QUALCOMM US 101,139
  3. SAMSUNG ELECTRONICS COMPANY KR 96,655
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
  5. LG ELECTRONICS KR 55,253
  6. HUAWEI TECHNOLOGIES COMPANY 54,181
  7. SONY CORPORATION JP 35,309
  8. ZTE CORPORATION CN 32,950
  9. INTEL CORPORATION US 27,533
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498