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IPC Subgroup
H01Q 9/2

Two collinear substantially straight active elements; Substantially straight single active elements

Introduced: September 1968

Last revised: January 2006

Full Title

Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements > Resonant antennas > with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole > Two collinear substantially straight active elements; Substantially straight single active elements

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC ELEMENTS
Subclass:
ANTENNAS, i.e. RADIO AERIALS

2 direct subcodes

Child Classifications

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  • H01Q 9/22 Rigid rod or equivalent tubular element or elements
  • H01Q 9/24 Shunt feed arrangements to single active elements, e.g. for delta matching

Top Applicants

Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
  2. SAMSUNG ELECTRONICS COMPANY KR 42,206
  3. LG CHEM KR 21,383
  4. APPLIED MATERIALS US 20,441
  5. LG ENERGY SOLUTION KR 20,279
  6. SAMSUNG DISPLAY KR 19,725
  7. CHINESE ACADEMY OF SCIENCES 19,400
  8. TOYOTA MOTOR CORPORATION 18,819
  9. SGCC(STATE GRID CORPORATION OF CHINA) 18,082
  10. TOKYO ELECTRON JP 17,634