Inventor · disambiguated record
Stephen A. Charles
Also filed as: CHARLES STEPHEN A · CHARLES STEPHEN ALEXANDER
32 granted patents·16 pending applications·780 citations·filing 1985–2024
97Inventor score
Files withKODIAK SCIENCES INC17NEKTAR THERAPEUTICS8BIOCOMPATIBLES LTD7OLIGASIS LLC3AMERSHAM INT PLC2
Top patents by PatentIndex Score
48 records- 0197US5705583APolymeric surface coatingsBIOCOMPATIBLES LTD·Filed 1995·Granted Jan 6, 1998·166 cites·15 claims
- 0296US11590235B2Factor VIII zwitterionic polymer conjugatesKODIAK SCIENCES INC·Filed 2020·Granted Feb 28, 2023·5 cites·15 claims
- 0395US10363290B2Butyrylcholinesterase zwitterionic polymer conjugatesKODIAK SCIENCES INC·Filed 2015·Granted Jul 30, 2019·11 cites·19 claims
- 0495US9913913B2Method for preparing a polymeric reagentNEKTAR THERAPEUTICS·Filed 2016·Granted Mar 13, 2018·3 cites·7 claims
- 0594US8846021B2Acryloyloxyethylphosphorylcholine containing polymer conjugates and their preparationOLIGASIS LLC·Filed 2013·Granted Sep 30, 2014·43 cites·19 claims
- 0694US7947261B2Conjugates formed from polymer derivatives having particular atom arrangementsNEKTAR THERAPEUTICS·Filed 2006·Granted May 24, 2011·9 cites·18 claims
- 0794US4997278ABiological sensorsAMERSHAM INT PLC·Filed 1988·Granted Mar 5, 1991·167 cites·14 claims
- 0893US11071771B2Butyrylcholinesterase zwitterionic polymer conjugatesKODIAK SCIENCES INC·Filed 2019·Granted Jul 27, 2021·7 cites·26 claims
- 0993US9840553B2Dual PDGF/VEGF antagonistsKODIAK SCIENCES INC·Filed 2015·Granted Dec 12, 2017·18 cites·34 claims
- 1093US9399070B2Compositions comprising a polymeric reagent and a pharmacologically active agentNEKTAR THERAPEUTICS·Filed 2015·Granted Jul 26, 2016·4 cites·15 claims
- 1193US8633277B2Methods for forming polymer-drug conjugatesHARRIS J MILTON·Filed 2011·Granted Jan 21, 2014·7 cites·18 claims
- 1292US11155610B2Dual PDGF/VEGF antagonistsKODIAK SCIENCES INC·Filed 2017·Granted Oct 26, 2021·7 cites·22 claims
- 1392US10702608B2Factor VIII zwitterionic polymer conjugatesKODIAK SCIENCES INC·Filed 2014·Granted Jul 7, 2020·10 cites·20 claims
- 1492US9044516B2Pharmaceutical compositions of conjugates formed from polymer derivatives having particular atom arrangementsNEKTAR THERAPEUTICS·Filed 2013·Granted Jun 2, 2015·5 cites·13 claims
- 1591US10646578B2Polymer derivatives having particular atom arrangementsNEKTAR THERAPEUTICS·Filed 2018·Granted May 12, 2020·2 cites·20 claims
- 1690US8765432B2Targeted drug phosphorylcholine polymer conjugatesCHARLES STEPHEN A·Filed 2010·Granted Jul 1, 2014·19 cites·2 claims
- 1789US11819531B2Multifunctional zwitterionic polymer conjugatesKODIAK SCIENCES INC·Filed 2016·Granted Nov 21, 2023·3 cites·21 claims
- 1889US5783650APolymeric surface coatingsBIOCOMPATIBLES LTD·Filed 1995·Granted Jul 21, 1998·45 cites·12 claims
- 1988US6087462APolymeric surface coatingsBIOCOMPATIBLES LTD·Filed 1998·Granted Jul 11, 2000·63 cites·24 claims
- 2088US4745077AMethod of performing assay for analyte in liquid mediumAMERSHAM INT PLC·Filed 1985·Granted May 17, 1988·83 cites·7 claims
- 2186US11446385B2Polymer derivatives having particular atom arrangementsNEKTAR THERAPEUTICS·Filed 2020·Granted Sep 20, 2022·1 cites·15 claims
- 2286US2024197810A1Multifunctional zwitterionic polymer conjugatesKODIAK SCIENCES INC·Filed 2023·Application pending·0 cites
- 2384US5645883AZwitterionic materialsBIOCOMPATIBLES LTD·Filed 1994·Granted Jul 8, 1997·34 cites·24 claims
- 2484US2024293585A1High molecular weight zwitterion-containing polymersKODIAK SCIENCES INC·Filed 2024·Application pending·0 cites
- 2583US2023113413A1Polymer derivatives having particular atom arrangementsNEKTAR THERAPEUTICS·Filed 2022·Application pending·0 cites
- 2680US12214044B2Factor VIII zwitterionic polymer conjugatesKODIAK SCIENCES INC·Filed 2023·Granted Feb 4, 2025·0 cites·15 claims
- 2780US7887789B2Polymer derivatives having particular atom arrangementsNEKTAR THERAPEUTICS·Filed 2004·Granted Feb 15, 2011·14 cites·20 claims
- 2876US2022096643A1Acryloyloxyethylphosphorylcholine Containing Polymer Conjugates And Their PreparationKODIAK SCIENCES INC·Filed 2021·Application pending·0 cites
- 2973US9730881B2Compositions and methods for hair improvementTRU-HAIR LLC·Filed 2013·Granted Aug 15, 2017·2 cites·38 claims
- 3073US2021402015A1High molecular weight zwitterion-containing polymersKODIAK SCIENCES INC·Filed 2021·Application pending·0 cites
- 3167US2020171179A1High molecular weight zwitterion-containing polymersKODIAK SCIENCES INC·Filed 2020·Application pending·0 cites
- 3265US2014024776A1High molecular weight zwitterion-containing polymersOLIGASIS·Filed 2013·Application pending·0 cites
- 3365US2020000930A1Acryloyloxyethylphosphorylcholine Containing Polymer Conjugates And Their PreparationKODIAK SCIENCES INC·Filed 2019·Application pending·0 cites
- 3464US2017143841A1High molecular weight zwitterion-containing polymersKODIAK SCIENCES INC·Filed 2016·Application pending·0 cites
- 3562US2020262905A1Dual pdgf/vegf antagonistsKODIAK SCIENCES INC·Filed 2020·Application pending·0 cites
- 3661US12357664B2Optimized oncolytic viruses and uses thereofSATOR THERAPEUTICS·Filed 2021·Granted Jul 15, 2025·0 cites·12 claims
- 3761US2015050714A1Acryloyloxyethylphosphorylcholine Containing Polymer Conjugates And Their PreparationOLIGASIS LLC·Filed 2014·Application pending·0 cites
- 3861US2010166700A1Acryloyloxyethylphosphorylcholine Containing Polymer Conjugates and Their PreparationOLIGASIS CORP·Filed 2007·Application pending·0 cites
- 3961US2015004128A1Targeted drug phosphorylcholine polymer conjugatesOLIGASIS LLC·Filed 2014·Application pending·0 cites
- 4058US2017007710A1Targeted drug phosphorylcholine polymer conjugatesKODIAK SCIENCES INC·Filed 2016·Application pending·0 cites
- 4154US2013045522A1Multifunctional zwitterionic polymer conjugatesOLIGASIS·Filed 2010·Application pending·0 cites
- 4251US2017367958A1Compositions and methods for hair improvementTRU-HAIR LLC·Filed 2017·Application pending·0 cites
- 4348US11253558B2Optimized oncolytic viruses and uses thereofSator Therapeutics LLC·Filed 2017·Granted Feb 22, 2022·0 cites·16 claims
- 4445US5556710AMetal coating useful for rendering the surface of the metal biocompatibleBIOCOMPATIBLES LTD·Filed 1993·Granted Sep 17, 1996·4 cites·12 claims
- 4544US5747347ALabelled carbohydrates and their use in assaysOXFORD GLYCOSYSTEMS LTD·Filed 1994·Granted May 5, 1998·11 cites·14 claims
- 4643US5798117AMethod of reducing microorganism adhesionBIOCOMPATIBLES LTD·Filed 1996·Granted Aug 25, 1998·23 cites·17 claims
- 4734US5717047AMaterialsBIOCOMPATIBLES LTD·Filed 1994·Granted Feb 10, 1998·14 cites·21 claims
- 4826US11273118B2Compositions and methods for improving skin qualityZIM BIOSCIENCES INC·Filed 2015·Granted Mar 15, 2022·0 cites·17 claims
Join the waitlist — get patent alerts
Get an alert when Stephen A. Charles files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →