Inventor · disambiguated record
Otto Phanstiel
Also filed as: PHANSTIEL IV OTTO · PHANSTIEL OTTO
41 granted patents·9 pending applications·200 citations·filing 1990–2025
97Inventor score
Files withMANNKIND CORP15UNIV CENTRAL FLORIDA RES FOUND INC10PHANSTIEL IV OTTO8GEN ELECTRIC6UNIV CENTRAL FLORIDA RES FOUND5
Top patents by PatentIndex Score
50 records- 0196US10870628B2Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic α-N-protected amino esterMANNKIND CORP·Filed 2020·Granted Dec 22, 2020·3 cites·20 claims
- 0295US11345668B2Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic α-N-protected amino esterMANNKIND CORP·Filed 2020·Granted May 31, 2022·2 cites·20 claims
- 0395US10577331B2Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic alpha-N-protected amino ester intermediateMANNKIND CORP·Filed 2018·Granted Mar 3, 2020·5 cites·17 claims
- 0495US9944609B2Formation of N-protected bis-3,6-(4-aminobutyl)-2, 5-diketopiperazine through a cyclic alpha-N-protected amino esterMANNKIND CORP·Filed 2015·Granted Apr 17, 2018·6 cites·20 claims
- 0595US9187433B2Formation of N-protected 3,6-bis-(4-aminobutyl) -2, 5-diketopiperazine through a cyclic α-N-protected active amino ester intermediateMANNKIND CORP·Filed 2015·Granted Nov 17, 2015·8 cites·20 claims
- 0695US8962836B2Formation of N-protected bis-3,6-(4-aminobutyl)-2,5-diketopiperazine through a cyclic alpha-N-protected amino esterMANNKIND CORP·Filed 2014·Granted Feb 24, 2015·9 cites·14 claims
- 0794US12049453B2Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic alpha-N-protected amino esterMANNKIND CORP·Filed 2022·Granted Jul 30, 2024·1 cites·20 claims
- 0894US9150495B2Polyamine transporter selective compounds as anti cancer agentsPHANSTIEL IV OTTO·Filed 2013·Granted Oct 6, 2015·7 cites·2 claims
- 0993US11479535B2Methods for the synthesis of activated ethylfumarates and their use as intermediatesMANNKIND CORP·Filed 2020·Granted Oct 25, 2022·2 cites·6 claims
- 1091US8497398B1Polyamine transporter selective compounds as anti-cancer agentsPHANSTIEL IV OTTO·Filed 2008·Granted Jul 30, 2013·11 cites·3 claims
- 1191US2025109109A1Methods for the synthesis of activated ethylfumarates and their use as intermediatesMANNKIND CORP·Filed 2024·Application pending·0 cites
- 1290US10071969B2Methods for the synthesis of activated ethylfumarates and their use as intermediatesMANNKIND CORP·Filed 2015·Granted Sep 11, 2018·3 cites·11 claims
- 1390US9598351B2Polyamine transporter selective compounds as anti-cancer agentsPHANSTIEL IV OTTO·Filed 2015·Granted Mar 21, 2017·4 cites·8 claims
- 1490US2024336576A1Formation of n-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic alpha-n-protected amino ester intermediateMANNKIND CORP·Filed 2024·Application pending·0 cites
- 1589US10858325B2Methods for the synthesis of activated ethylfumarates and their use as intermediatesMANNKIND CORP·Filed 2018·Granted Dec 8, 2020·3 cites·14 claims
- 1688US7728041B2Motuporamine mimic agentsUNIV CENTRAL FLORIDA RES FOUND·Filed 2006·Granted Jun 1, 2010·10 cites·3 claims
- 1786US9193691B2Methods for the synthesis of activated ethylfumarates and their use as intermediatesMANNKIND CORP·Filed 2013·Granted Nov 24, 2015·3 cites·12 claims
- 1885US12202807B2Methods for the synthesis of activated ethylfumarates and their use as intermediatesMANNKIND CORP·Filed 2022·Granted Jan 21, 2025·0 cites·20 claims
- 1985US8410311B1Fluorescent cytotoxic compounds specific for the cellular polyamine transport systemPHANSTIEL IV OTTO·Filed 2010·Granted Apr 2, 2013·3 cites·8 claims
- 2083US10710957B2Motuporamine derivatives as antimicrobial agents and antibiotic enhancers against resistant gram-negative bacteriaUNIV CENTRAL FLORIDA RES FOUND INC·Filed 2018·Granted Jul 14, 2020·2 cites·4 claims
- 2181US9212131B2Polyamine transport inhibitors as novel therapeuticsPHANSTIEL OTTO·Filed 2010·Granted Dec 15, 2015·12 cites·4 claims
- 2281US7910363B1Lipophilic polyamines providing enhanced intracellular delivery of agents by a polyamine transport systemUNIV CENTRAL FLORIDA RES FOUND·Filed 2008·Granted Mar 22, 2011·8 cites·32 claims
- 2380US7001925B1Compounds and method for enhancing the efficacy of anti-cancer drugsUNIV CENTRAL FLORIDA RES FOUND·Filed 2003·Granted Feb 21, 2006·8 cites·17 claims
- 2479US2025214946A1Formation of n-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic alpha-n-protected amino ester intermediateMANNKIND CORP·Filed 2025·Application pending·0 cites
- 2578US9730902B2Polyamine transport inhibitors as novel therapeuticsPHANSTIEL IV OTTO·Filed 2015·Granted Aug 15, 2017·3 cites·8 claims
- 2677US7972807B1Diagnostic tests for inflammatory bowel diseasesUNIV CENTRAL FLORIDA RES FOUND·Filed 2008·Granted Jul 5, 2011·5 cites·5 claims
- 2776US9346741B2Polyamine transport selective therapeutic agents with enhanced stabilityPHANSTIEL IV OTTO·Filed 2013·Granted May 24, 2016·3 cites·17 claims
- 2875US12365659B2Non-polyamine based polyamine transport inhibitors and their use in the treatment of human cancersUNIV CENTRAL FLORIDA RES FOUND INC·Filed 2024·Granted Jul 22, 2025·0 cites·8 claims
- 2975US5132373AOrtho ester-capped polyphenylene ethers and copolymers prepared therefromGEN ELECTRIC·Filed 1990·Granted Jul 21, 1992·23 cites·10 claims
- 3072US7728040B1Polyamine conjugates as selective NMDA inhibitors and anti-cancer drugsUNIV CENTRAL FLORIDS RES FOUND·Filed 2008·Granted Jun 1, 2010·2 cites·4 claims
- 3168US9266815B2Anti-metastatic agents predicated upon polyamine macrocyclic conjugatesPHANSTIEL IV OTTO·Filed 2013·Granted Feb 23, 2016·1 cites·9 claims
- 3267US11820726B2Motuporamine derivatives as antimicrobial agents and antibiotic enhancers against resistant gram-negative bacteriaUNIV CENTRAL FLORIDA RES FOUND INC·Filed 2020·Granted Nov 21, 2023·0 cites·2 claims
- 3363US5089567ACopolymer-containing compositions from substituted triazine-capped polyphenylene ethersGEN ELECTRIC·Filed 1991·Granted Feb 18, 1992·13 cites·31 claims
- 3461US11905268B2Anthranilic acid derivatives and their use in the treatment of human cancersUNIV CENTRAL FLORIDA RES FOUND INC·Filed 2019·Granted Feb 20, 2024·0 cites·4 claims
- 3559US5210191ASubstituted triazine-capped polyphenylene ethersGEN ELECTRIC·Filed 1991·Granted May 11, 1993·15 cites·13 claims
- 3658US11752113B2Polyamine transport inhibitors as antiviralsUNIV CENTRAL FLORIDA RES FOUND INC·Filed 2021·Granted Sep 12, 2023·0 cites·12 claims
- 3757US5159075ASubstituted chlorotriazines useful for reactive capping of polyphenylene ethersGEN ELECTRIC·Filed 1991·Granted Oct 27, 1992·14 cites·20 claims
- 3855US9629822B2Flavonoid based antiviral targetsUNIV CENTRAL FLORIDA RES FOUND INC·Filed 2013·Granted Apr 25, 2017·0 cites·19 claims
- 3955US5142049AOrtho ester-substituted chlorotriazines as capping agents for polyphenylene ethersGEN ELECTRIC·Filed 1990·Granted Aug 25, 1992·5 cites·14 claims
- 4054USRE47750EAnti-metastatic agents predicated upon polyamine macrocylic conjugatesUNIV CENTRAL FLORIDA RES FOUND INC·Filed 2013·Granted Dec 3, 2019·0 cites·9 claims
- 4154US2007088081A1Polyamine conjugates as selective NMDA inhibitors and anti-cancer drugsRESEARCH FOUNDATION UNIV CENTRAL FLORIDA INC·Filed 2006·Application pending·0 cites
- 4252US9285320B2Fluorescent cytotoxic compounds specific for the cellular polyamine transport systemUNIV CENTRAL FLORIDA RES FOUND·Filed 2013·Granted Mar 15, 2016·0 cites·18 claims
- 4350US11529322B2Spermine pro-drugsUNIV CENTRAL FLORIDA RES FOUND INC·Filed 2020·Granted Dec 20, 2022·0 cites·4 claims
- 4449US2010240747A1Motuporamine Mimic AgentsPHANSTIEL OTTO·Filed 2010·Application pending·0 cites
- 4548US9926260B2Polyamine transport selective therapeutic agents with enhanced stabilityUNIV CENTRAL FLORIDA RES FOUND INC·Filed 2016·Granted Mar 27, 2018·0 cites·16 claims
- 4647US5162448AOrtho ester-capped polyphenylene ethers and copolymers prepared therefromGEN ELECTRIC·Filed 1991·Granted Nov 10, 1992·6 cites·13 claims
- 4746US2021317090A1Amino acid depletion agents as antiproliferative agentsUNIV CENTRAL FLORIDA RES FOUND INC·Filed 2019·Application pending·0 cites
- 4845US2009069441A1Motuporamine Mimic AgentsPHANSTIEL OTTO·Filed 2008·Application pending·0 cites
- 4936US2016299149A1Assays and methods for cell proliferation-targeted treatment therapiesPHANSTIEL IV OTTO·Filed 2016·Application pending·0 cites
- 5036US2019365673A1Immunomodulatory CompoundsLANKENAU INST MEDICAL RES·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →