Inventor · disambiguated record
Ching-Jen Chang
Also filed as: CHANG CHING-JEN
12 granted patents·4 pending applications·653 citations·filing 1982–2013
93Inventor score
Top patents by PatentIndex Score
16 records- 0195US4421902AAlkyl, poly(oxyethylene) poly(carbonyloxyethylene) acrylate emulsion copolymers for thickening purposesROHM & HAAS·Filed 1982·Granted Dec 20, 1983·183 cites·22 claims
- 0294US6384104B1Method for preparing ultraviolet radiation-absorbing compositionsROHM & HAAS·Filed 2000·Granted May 7, 2002·64 cites·20 claims
- 0391US4914170ASuperabsorbent polymeric compositions and process for producing the sameROHM & HAAS·Filed 1987·Granted Apr 3, 1990·92 cites·13 claims
- 0491US4423199AAcrylamide containing emulsion copolymers for thickening purposesROHM & HAAS·Filed 1982·Granted Dec 27, 1983·78 cites·22 claims
- 0589US4429097AAlkyl poly(oxyalkylene) esters of acrylate oligomers and copolymers thereof for thickening purposesROHM & HAAS·Filed 1982·Granted Jan 31, 1984·78 cites·27 claims
- 0685US5955549ACrosslinked poly(amino acids) and method of preparationFiled 1998·Granted Sep 21, 1999·45 cites·11 claims
- 0784US6214328B1Stiff-feel hair styling compositionsROHM & HAAS·Filed 1999·Granted Apr 10, 2001·56 cites·18 claims
- 0883US9634389B2Multipath switching system having adjustable phase shift arrayIND TECH RES INST·Filed 2013·Granted Apr 25, 2017·10 cites·15 claims
- 0979US4663385AProcess for thickening with copolymers of alkyl poly (oxyalkylene) itaconic di-estersROHM & HAAS·Filed 1982·Granted May 5, 1987·31 cites·13 claims
- 1052US7312259B2Process for manufacturing polymersROHM & HAAS·Filed 2004·Granted Dec 25, 2007·2 cites·3 claims
- 1152US6368575B2Method for inhibiting corrosion in an aqueous aerosol or foam hair styling compositionROHM & HAAS·Filed 1999·Granted Apr 9, 2002·14 cites·14 claims
- 1246US2005075266A1Polymers and process for controlling rheology of aqueous compositionsFiled 2004·Application pending·0 cites
- 1344US7932222B2Triggered response compositionsROHM & HAAS·Filed 2003·Granted Apr 26, 2011·0 cites·1 claims
- 1443US2004030034A1Triggered response compositionsFiled 2003·Application pending·0 cites
- 1542US2004110891A1Multi-stage polymer compositions having a triggered responseFiled 2003·Application pending·0 cites
- 1639US2005043453A1Process for manufacturing polymersFiled 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →