Inventor · disambiguated record
E Guan
Also filed as: GUAN E
6 granted patents·114 citations·filing 2008–2017
85Inventor score
Technology areasA61M
Top patents by PatentIndex Score
6 records- 0189US8740856B2Stoppers used in pre-filled syringesQUINN MICHAEL VINCENT·Filed 2010·Granted Jun 3, 2014·33 cites·23 claims
- 0285US10183118B2Stoppers used in pre-filled syringesBECTON DICKINSON CO·Filed 2017·Granted Jan 22, 2019·5 cites·8 claims
- 0384US8475415B2Positive displacement stopper for a pre-filled syringeSCHILLER ERIC·Filed 2008·Granted Jul 2, 2013·33 cites·37 claims
- 0483US9592346B2Stoppers used in pre-filled syringesBECTON DICKINSON CO·Filed 2014·Granted Mar 14, 2017·13 cites·16 claims
- 0579US8740854B2Stopper and plunger rod for a pre-filled syringeSCHILLER ERIC·Filed 2008·Granted Jun 3, 2014·22 cites·31 claims
- 0677US9649444B2Positive displacement stopper for a pre-filled syringeBECTON DICKINSON CO·Filed 2013·Granted May 16, 2017·8 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →