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AHN DAL

Overview
  • Total Patents
    16
About

AHN DAL has a total of 16 patent applications. Its first patent ever was published in 1998. It filed its patents most often in Republic of Korea, EPO (European Patent Office) and United States. Its main competitors in its focus markets telecommunications, consumer goods and electrical machinery and energy are PIVOTONE COMMUNICATION TECH INC, FOR E M S P A and FOREM SPA.

Patent filings in countries

World map showing AHN DALs patent filings in countries

Patent filings per year

Chart showing AHN DALs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ahn Dal 16
#2 Park Jun Seok 7
#3 Park Jong Cheol 4
#4 Lim Jong Sik 3
#5 Yoon Cheol Sang 3
#6 Kang Byeong Gwon 2
#7 Park Kyu Ho 2
#8 Lee Kyung Ho 2
#9 Nam Sang Wook 2
#10 Kim Chul Soo 2

Latest patents

Publication Filing date Title
KR20060000150A 90- hybrid coupler integrally incorporating low pass filter
KR20050104124A Microstrip directional coupler having high directivity characteristic
KR20020071795A Coplanar Waveguide Transmission Lines with Spiral-Shaped Defected Ground Structure
KR20010112157A A Technique for the Size Reduction of RF/Microwave/Millimeter Wave Amplifiers for Wireless Communications By inserting Defected Ground Structure into the Matching Networks
KR20020050779A Microwave Dielectric Ceramic Compositions
KR20020039825A Radio Inspection Signal Transmitting Apparatus for Use in System for Inspecting Corrosion of Laying Gas Pipe
KR20020004314A Resonator Using Defected Ground Structure on Dielectric
KR20010073264A Power Divider Capable of Tuning Distribution Ratio
KR20010059397A Dielectric ceramic compositions
KR20000049353A Small Ceramic Resonator Easy to Couple One Stage with Another Stage
KR20010047733A System for Combining RF Transmitter and Receiver Using Circulator and Method for Cancelling Transmission Signal thereof
KR20010027288A Band Pass Filter of Dielectric Resonator Type Having Symmetrically Upper and Lower Notch Points
KR20000041191A Dielectric resonator type microwave element
KR20000034125A Multilayered ceramic block for wireless communication