Inventor

Thomas STEFFAN

US2 patents

Patents

2 patents

US10703949B2Jul 7, 2020

Refrigerant with lubricating oil for replacement of R22 refrigerant

R421A LLC1 citations61

US11345840B2May 31, 2022

Refrigerant with lubricating oil for replacement of R22 refrigerant

R421A LLC0 citations50