Inventor · disambiguated record

Zhang Zheng Ru

Also filed as: RU ZHANG · RU ZHANG ZHENG

2 granted patents·16 citations·filing 1992–1999

58Inventor score

Technology areasB43L C10L

Files withYUSHAN FU1

Top patents by PatentIndex Score

2 records

0132US6379404B1Additive used in the combustible water/hydrocarbon fuel mixtureFiled 1999·Granted Apr 30, 2002·7 cites·10 claims
0225US5205664ALead-auto-sharpened propelling pencil and the making process thereofYUSHAN FU·Filed 1992·Granted Apr 27, 1993·9 cites·4 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →