Inventor · disambiguated record
Ping Y. Liu
Also filed as: LIU PING · LIU PING Y · LIU PING-YU
97 granted patents·11 pending applications·1,181 citations·filing 1979–2024
99Inventor score
Files withGEN ELECTRIC58OHFG TECH SHANGHAI CO LTD23LIU PING10CANON KK2OMNI HEALTH & FITNESS GROUP LTD2
Top patents by PatentIndex Score
108 records- 0196US4260693APolycarbonate compositionsGEN ELECTRIC·Filed 1979·Granted Apr 7, 1981·82 cites·8 claims
- 0292USD992659SAdjustable barbellOHFG TECH SHANGHAI CO LTD·Filed 2022·Granted Jul 18, 2023·14 cites·1 claims
- 0392USD984563SRowing machineLIU PING·Filed 2021·Granted Apr 25, 2023·15 cites·1 claims
- 0492US5385970AHalogen-free flame retardant ternary blendsGEN ELECTRIC·Filed 1993·Granted Jan 31, 1995·62 cites·11 claims
- 0591US12343585B2Adjustable dumbbellOHFG TECH SHANGHAI CO LTD·Filed 2023·Granted Jul 1, 2025·3 cites·10 claims
- 0691US7285078B1Adjustable dumbbellLIU PING·Filed 2006·Granted Oct 23, 2007·44 cites·6 claims
- 0789USD986356SAdjustable barbellOHFG TECH SHANGHAI CO LTD·Filed 2023·Granted May 16, 2023·11 cites·1 claims
- 0889US11306365B1Molecular marker C42257 for rapidly identifying genetic sex of Marsupenaeus japonicus and applications thereofYELLOW SEA FISHERIES RES INST CHINESE ACAD FISHERY SCIENCES·Filed 2021·Granted Apr 19, 2022·11 cites·3 claims
- 0989US11007397B2Adjustable dumbbellOHFG TECH SHANGHAI CO LTD·Filed 2019·Granted May 18, 2021·12 cites·7 claims
- 1088US4564658AThermoplastic polyester-linear low density polyethylene molding compositionsGEN ELECTRIC·Filed 1982·Granted Jan 14, 1986·41 cites·7 claims
- 1187US7604578B2Adjustable dumbbell systemLIU PING·Filed 2008·Granted Oct 20, 2009·30 cites·4 claims
- 1287US7452312B2Adjustable dumbbell systemLIU PING·Filed 2007·Granted Nov 18, 2008·29 cites·8 claims
- 1386USD998727SExercise bikeOHFG TECH SHANGHAI CO LTD·Filed 2023·Granted Sep 12, 2023·8 cites·1 claims
- 1486US9504868B2Dumbbell glide apparatus with weight adjusting keyLIU PING·Filed 2011·Granted Nov 29, 2016·16 cites·14 claims
- 1586US7662077B1Ab/back bench systemLIU PING·Filed 2008·Granted Feb 16, 2010·29 cites·1 claims
- 1685USD1026134SAdjustable dumbbellOHFG TECH SHANGHAI CO LTD·Filed 2023·Granted May 7, 2024·7 cites·1 claims
- 1785US4245058APolycarbonate compositionsGEN ELECTRIC·Filed 1979·Granted Jan 13, 1981·33 cites·8 claims
- 1883US7654944B1Foldable exercise bench systemLIU PING·Filed 2008·Granted Feb 2, 2010·22 cites·1 claims
- 1982US7403209B2Rendering images containing videoCANON KK·Filed 2005·Granted Jul 22, 2008·20 cites·29 claims
- 2081US8486304B2Gelable compositionWU YILIANG·Filed 2005·Granted Jul 16, 2013·3 cites·19 claims
- 2181US5256714AFlame retardant polyester blendsGEN ELECTRIC·Filed 1991·Granted Oct 26, 1993·25 cites·24 claims
- 2281US4652602ABlow-moldable polycarbonate resin compositionsGEN ELECTRIC·Filed 1985·Granted Mar 24, 1987·25 cites·10 claims
- 2380USD1036584SDumbbell benchOHFG TECH SHANGHAI CO LTD·Filed 2024·Granted Jul 23, 2024·5 cites·1 claims
- 2480US4710534ALow gloss, flame reterdant, impact resistant polycarbonate compositionGEN ELECTRIC·Filed 1985·Granted Dec 1, 1987·31 cites·16 claims
- 2579USD1011449SCombined dumbbell and baseOHFG TECH SHANGHAI CO LTD·Filed 2023·Granted Jan 16, 2024·5 cites·1 claims
- 2679US4390657AComposition of polycarbonate, an ABS resin and an acrylate-methacrylate interpolymerGEN ELECTRIC·Filed 1981·Granted Jun 28, 1983·27 cites·29 claims
- 2778US4559388ACopolyester-carbonate compositionGEN ELECTRIC·Filed 1984·Granted Dec 17, 1985·28 cites·32 claims
- 2877USD1062930SCombined dumbbell and baseOHFG TECH SHANGHAI CO LTD·Filed 2024·Granted Feb 18, 2025·4 cites·1 claims
- 2976USD1030921SCombined dumbbell and baseOHFG TECH SHANGHAI CO LTD·Filed 2024·Granted Jun 11, 2024·4 cites·1 claims
- 3075US4564655APolycarbonate compositionsGEN ELECTRIC·Filed 1984·Granted Jan 14, 1986·29 cites·13 claims
- 3173USD1068973SCombined dumbbell and baseOHFG TECH SHANGHAI CO LTD·Filed 2024·Granted Apr 1, 2025·3 cites·1 claims
- 3271US11007394B2Method of making a weight-type exercise device and a dumbbell and bell piece produced by the methodOHFG TECH SHANGHAI CO LTD·Filed 2019·Granted May 18, 2021·2 cites·7 claims
- 3371US8351691B2Object extraction in colour compound documentsCANON KK·Filed 2009·Granted Jan 8, 2013·10 cites·12 claims
- 3471US4503183APolycarbonate resin molding compositionGEN ELECTRIC·Filed 1983·Granted Mar 5, 1985·20 cites·17 claims
- 3570US4481331APolycarbonate resin mixtureGEN ELECTRIC·Filed 1983·Granted Nov 6, 1984·20 cites·26 claims
- 3670US4320212ATernary polycarbonate compositions containing polyacrylate and thermoplastic polyesterGEN ELECTRIC·Filed 1980·Granted Mar 16, 1982·19 cites·12 claims
- 3769US12427362B2Weight-adjustable barbell, and method for adjusting weight of barbellOHFG TECH SHANGHAI CO LTD·Filed 2022·Granted Sep 30, 2025·0 cites·15 claims
- 3869US5153263APlasticized polyetherimide ester blendsGEN ELECTRIC·Filed 1991·Granted Oct 6, 1992·21 cites·15 claims
- 3969US4430476AResinous composition comprising a polycarbonate resin, a linear low density polyolefin and an alkenyl aromatic copolymerGEN ELECTRIC·Filed 1982·Granted Feb 7, 1984·19 cites·8 claims
- 4067US4634737ACopolyester-carbonate compositionGEN ELECTRIC·Filed 1985·Granted Jan 6, 1987·19 cites·30 claims
- 4165USD998726SExercise bikeOHFG TECH SHANGHAI CO LTD·Filed 2023·Granted Sep 12, 2023·2 cites·1 claims
- 4265US2025215401A1Compositions and methods for recombinant aav productionREGENXBIO INC·Filed 2023·Application pending·0 cites
- 4364US4263415APolycarbonate compositionsGEN ELECTRIC·Filed 1979·Granted Apr 21, 1981·15 cites·8 claims
- 4463US12403351B1Adjustable dumbbellOHFG TECH SHANGHAI CO LTD·Filed 2024·Granted Sep 2, 2025·0 cites·10 claims
- 4563US4629760AComposition of polycarbonate, polyester, acrylate elastomeric copolymer and a phenoxy resinGEN ELECTRIC·Filed 1985·Granted Dec 16, 1986·16 cites·20 claims
- 4663US4532282ABlends of aromatic polycarbonate resin, olefin polymers or copolymers and acrylate- or methacrylate-copolymer resinsGEN ELECTRIC·Filed 1983·Granted Jul 30, 1985·17 cites·16 claims
- 4763US2025230465A1Compositions and methods for recombinant aav productionREGENXBIO INC·Filed 2022·Application pending·0 cites
- 4862US4536538AImpact modified polycarbonate compositionGEN ELECTRIC·Filed 1983·Granted Aug 20, 1985·15 cites·16 claims
- 4961US5162412APolyester compositions having improved wear characteristicsGEN ELECTRIC·Filed 1991·Granted Nov 10, 1992·11 cites·16 claims
- 5060US4520164ABlends of aromatic polycarbonate resins, polyolefins and olefin copolymers, and acrylate interpolymer resinsGEN ELECTRIC·Filed 1982·Granted May 28, 1985·14 cites·16 claims
Showing the top 50 of 108 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →