Inventor · disambiguated record
Cheng-Hwa Chuang
Also filed as: CHUANG CHENG-HWA
8 granted patents·223 citations·filing 1989–1997
89Inventor score
Top patents by PatentIndex Score
8 records- 0191USD341623SCombined writing instrument and replaceable writing tipsPIONEER IND CORPORATION·Filed 1992·Granted Nov 23, 1993·46 cites·1 claims
- 0289US5044804AWriting instrumentPIONEER IND CORP·Filed 1989·Granted Sep 3, 1991·62 cites·3 claims
- 0385USD355442SCombined refillable eraser tips and container thereforPIONEER IND CORPORATION·Filed 1994·Granted Feb 14, 1995·29 cites·1 claims
- 0482USD394876SCombined refillable eraser tips and holder thereforPIONEER IND CORP·Filed 1997·Granted Jun 2, 1998·28 cites·1 claims
- 0578US5221152AWriting instrument with capPIONEER IND CORP·Filed 1992·Granted Jun 22, 1993·41 cites·4 claims
- 0653US5984550AWriting devicePIONEER IND CORP·Filed 1996·Granted Nov 16, 1999·12 cites·6 claims
- 0737USD359510SCap for writing instrumentPIONEER IND CORPORATION·Filed 1994·Granted Jun 20, 1995·3 cites·1 claims
- 0823US5345652ARefill eraserPIONEER IND CO·Filed 1994·Granted Sep 13, 1994·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →