Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for preparing xanthine phosphodiesterase V inhibitors and precursors thereof

Process for preparing xanthine phosphodiesterase V inhibitors and precursors thereof

US Patent 7786301 · Granted Aug 31, 2010

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Gradient-structured ultra-fine bainitic low-alloy rail steel and preparation met2024
Method for smelting low-phosphorus high-manganese steel based on reduction depho2024
Method, apparatus, and system for recovering a sensor from silicone poisoning2023
Method for decreasing baseline under high temperature of gas sensor2021
Method, apparatus and medium for sharing photo2019
Nano-pearlite rail and process for manufacturing same2018
Process and intermediates for the synthesis of 8-[{1-(3,5-bis-(trifluoromethyl)p2017
Process for preparing tetracyclic heterocycle compounds2017
Process for preparing tetracyclic heterocycle compounds2017
Process and intermediates for the synthesis of 8-[{1-(3,5-bis-(trifluoromethyl)p2016
Exo- and diastereo-selective synthesis of himbacine analogs2013
Synthesis of diethyl{[5-(3-fluorophenyl)-pyridine-2yl]methyl}phosphonate2012