Inventor
PHANSTIEL OTTO
US19 patents
⚠️ This page may combine multiple inventors who share the name “PHANSTIEL OTTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MANNKIND CORP
12 patentsUS8962836B2Feb 24, 2015
Formation of N-protected bis-3,6-(4-aminobutyl)-2,5-diketopiperazine through a cyclic alpha-N-protected amino ester
MANNKIND CORP9 citations92
US10870628B2Dec 22, 2020
Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic α-N-protected amino ester
MANNKIND CORP3 citations83
US10577331B2Mar 3, 2020
Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic alpha-N-protected amino ester intermediate
MANNKIND CORP5 citations83
US9944609B2Apr 17, 2018
Formation of N-protected bis-3,6-(4-aminobutyl)-2, 5-diketopiperazine through a cyclic alpha-N-protected amino ester
MANNKIND CORP6 citations83
US9187433B2Nov 17, 2015
Formation of N-protected 3,6-bis-(4-aminobutyl) -2, 5-diketopiperazine through a cyclic α-N-protected active amino ester intermediate
MANNKIND CORP8 citations83
US12049453B2Jul 30, 2024
Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic alpha-N-protected amino ester
MANNKIND CORP1 citations72
US11345668B2May 31, 2022
Formation of N-protected 3,6-bis-(4-aminobutyl)-2,5-diketopiperazine through a cyclic α-N-protected amino ester
MANNKIND CORP2 citations72
US11479535B2Oct 25, 2022
Methods for the synthesis of activated ethylfumarates and their use as intermediates
MANNKIND CORP2 citations71
US10858325B2Dec 8, 2020
Methods for the synthesis of activated ethylfumarates and their use as intermediates
MANNKIND CORP3 citations71
US10071969B2Sep 11, 2018
Methods for the synthesis of activated ethylfumarates and their use as intermediates
MANNKIND CORP3 citations71
US12202807B2Jan 21, 2025
Methods for the synthesis of activated ethylfumarates and their use as intermediates
MANNKIND CORP0 citations60
US9193691B2Nov 24, 2015
Methods for the synthesis of activated ethylfumarates and their use as intermediates
MANNKIND CORP3 citations59
GEN ELECTRIC
3 patentsUS5210191AMay 11, 1993
Substituted triazine-capped polyphenylene ethers
GEN ELECTRIC15 citations74
US5159075AOct 27, 1992
Substituted chlorotriazines useful for reactive capping of polyphenylene ethers
GEN ELECTRIC14 citations74
US5089567AFeb 18, 1992
Copolymer-containing compositions from substituted triazine-capped polyphenylene ethers
GEN ELECTRIC13 citations74