Chih-Hao Yiu

Person

Tatchung City, TW

People

Patents Grantslast 30 patents

Information Patent Grant
Game dart having ballast
- Patent number 7,108,620
- Issue date Sep 19, 2006
- Chih Hao Yiu
- F42 - AMMUNITION BLASTING
Information Patent Grant
Method for driving electric percussion tool
- Patent number 6,854,530
- Issue date Feb 15, 2005
- Chih Hao Yiu
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Device for generating a 3-D image from two 2-D pictures
- Patent number 6,798,573
- Issue date Sep 28, 2004
- Chih-Hao Yiu
- G02 - OPTICS
Information Patent Grant
Dart board
- Patent number 6,543,779
- Issue date Apr 8, 2003
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Thermal finger nail decal attaching device
- Patent number 6,516,813
- Issue date Feb 11, 2003
- Chih-Hao Yiu
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Score ring structure for dart boards
- Patent number 6,499,740
- Issue date Dec 31, 2002
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Target block structure of electronic dartboard
- Patent number 6,481,412
- Issue date Nov 19, 2002
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Dartboard
- Patent number 6,450,501
- Issue date Sep 17, 2002
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Dartboard
- Patent number 6,375,193
- Issue date Apr 23, 2002
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Hinge means for a dart board assembly
- Patent number 6,371,486
- Issue date Apr 16, 2002
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Noise reduction dart board
- Patent number 6,302,809
- Issue date Oct 16, 2001
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Zero zone structure for a dart board
- Patent number 6,135,457
- Issue date Oct 24, 2000
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Dart board having a functions locking button
- Patent number 6,053,499
- Issue date Apr 25, 2000
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Liquid aerating assembly having a safety device
- Patent number 6,017,021
- Issue date Jan 25, 2000
- Chih-Hao Yiu
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
Information Patent Grant
Dart game having an automatic player
- Patent number 5,954,339
- Issue date Sep 21, 1999
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Score indicating method for a dart game
- Patent number 5,934,677
- Issue date Aug 10, 1999
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Skate device having magnetic support
- Patent number 5,934,706
- Issue date Aug 10, 1999
- Chih-Hao Yiu
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Dartboard having improved sliding segments
- Patent number 5,897,116
- Issue date Apr 27, 1999
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Dartboard having a protective target
- Patent number 5,884,916
- Issue date Mar 23, 1999
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Electronic dart game
- Patent number D400932
- Issue date Nov 10, 1998
- Chih-Hao Yiu
- D21 - Games, toys, and sports goods
Information Patent Grant
Electronic dart game
- Patent number D393491
- Issue date Apr 14, 1998
- Chih-Hao Yiu
- D21 - Games, toys, and sports goods
Information Patent Grant
Dart board having a dart support
- Patent number 5,735,527
- Issue date Apr 7, 1998
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Apparatus for scoring table tennis game
- Patent number 5,733,210
- Issue date Mar 31, 1998
- Chih-Hao Yiu
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Electronic dart game
- Patent number D390277
- Issue date Feb 3, 1998
- Chih-Hao Yiu
- D21 - Games, toys, and sports goods
Information Patent Grant
Electronic dart game
- Patent number D390278
- Issue date Feb 3, 1998
- Chih-Hao Yiu
- D21 - Games, toys, and sports goods
Information Patent Grant
Dart board for use on a table
- Patent number D386795
- Issue date Nov 25, 1997
- Chih-Hao Yiu
- D21 - Games, toys, and sports goods
Information Patent Grant
Target board having a surrounding dart receiving configuration
- Patent number 5,613,686
- Issue date Mar 25, 1997
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Dart target
- Patent number D378103
- Issue date Feb 18, 1997
- Chih-Hao Yiu
- D21 - Games, toys, and sports goods
Information Patent Grant
Double bullseye for dart game
- Patent number 5,601,290
- Issue date Feb 11, 1997
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Grant
Scoring system for dart games
- Patent number 5,531,451
- Issue date Jul 2, 1996
- Chih-Hao Yiu
- F41 - WEAPONS

Patents Applicationslast 30 patents

Information Patent Application
Unidirectional Coil Induction System for a Dartboard
- Publication number 20070228659
- Publication date Oct 4, 2007
- Chih-Hao YIU
- F41 - WEAPONS
Information Patent Application
Integrating Wave Sensing and Magnetic Induction Dartboard System
- Publication number 20070228658
- Publication date Oct 4, 2007
- Chih-Hao YIU
- F42 - AMMUNITION BLASTING
Information Patent Application
Apparatus and Method for Magnetizing a Dart
- Publication number 20070087873
- Publication date Apr 19, 2007
- Chih-Hao YIU
- F42 - AMMUNITION BLASTING
Information Patent Application
Magnetic Induction Dart
- Publication number 20070080498
- Publication date Apr 12, 2007
- Chih-Hao YIU
- F42 - AMMUNITION BLASTING
Information Patent Application
Device for generating a 3-D image from two 2-D pictures
- Publication number 20030210463
- Publication date Nov 13, 2003
- Chih-Hao Yiu
- G02 - OPTICS
Information Patent Application
Device for detecting speed and position of balls
- Publication number 20030064837
- Publication date Apr 3, 2003
- Chih-Hao Yiu
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
TARGET BLOCK STRUCTURE OF ELECTRONIC DARTBOARD
- Publication number 20020163131
- Publication date Nov 7, 2002
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Application
Finger nail decorations attaching device field of the invention
- Publication number 20020157679
- Publication date Oct 31, 2002
- Chih-Hao Yiu
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Application
Dart board display device
- Publication number 20020158414
- Publication date Oct 31, 2002
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Application
Dart board assembly
- Publication number 20020109300
- Publication date Aug 15, 2002
- Chih-Hao Yiu
- F41 - WEAPONS
Information Patent Application
Device for generating a 3-D image from two 2-D pictures
- Publication number 20010048555
- Publication date Dec 6, 2001
- Chih-Hao Yiu
- G02 - OPTICS
Information Patent Application
Dart board
- Publication number 20010006277
- Publication date Jul 5, 2001
- Chih-Hao Yiu
- F41 - WEAPONS

Chih-Hao Yiu

Person

Patents Grantslast 30 patents

Game dart having ballast

Method for driving electric percussion tool

Device for generating a 3-D image from two 2-D pictures

Dart board

Thermal finger nail decal attaching device

Score ring structure for dart boards

Target block structure of electronic dartboard

Dartboard

Dartboard

Hinge means for a dart board assembly

Noise reduction dart board

Zero zone structure for a dart board

Dart board having a functions locking button

Liquid aerating assembly having a safety device

Dart game having an automatic player

Score indicating method for a dart game

Skate device having magnetic support

Dartboard having improved sliding segments

Dartboard having a protective target

Electronic dart game

Electronic dart game

Dart board having a dart support

Apparatus for scoring table tennis game

Electronic dart game

Electronic dart game

Dart board for use on a table

Target board having a surrounding dart receiving configuration

Dart target

Double bullseye for dart game

Scoring system for dart games

Patents Applicationslast 30 patents

Unidirectional Coil Induction System for a Dartboard

Integrating Wave Sensing and Magnetic Induction Dartboard System

Apparatus and Method for Magnetizing a Dart

Magnetic Induction Dart

Device for generating a 3-D image from two 2-D pictures

Device for detecting speed and position of balls

TARGET BLOCK STRUCTURE OF ELECTRONIC DARTBOARD

Finger nail decorations attaching device field of the invention

Dart board display device

Dart board assembly

Device for generating a 3-D image from two 2-D pictures

Dart board