Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › 2-(perhydro-1,4-diazino)-pyrimido[5,4-d]-pyrimidines and salts thereof

2-(perhydro-1,4-diazino)-pyrimido[5,4-d]-pyrimidines and salts thereof

US Patent 4728646 · Granted Mar 1, 1988

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Modular surgical instrument2021
Surgical trabecular tool and method for manufacturing2020
Surgical cutting tool2014
Surgical tool and method2013
Shear-load chuck holder2002
Carboxylic acid derivatives, medicaments comprising these compounds, their use a1999
Substituted phenylamindines, medicaments containing these compounds and process 1999
Piperazine derivatives, medicaments comprising these compounds, their use and pr1999
Biphenyl derivatives, pharmaceutical compositions containing these compounds and1999
Transverse force rod bearing1999
Cyclic urea derivatives, pharmaceutical compositions containing these compounds 1999
Benzimidazoles, medicaments containing these compounds and processes for their p1999