  Liquid Argon (LAr) is one of the most widely used scintillators in particle
detection, due to its low cost, high availability and excellent scintillation
properties. A large number of experiments in the neutrino sector are based
around using LAr in one or more Time Projection Chambers (TPCs), leading to
high resolution three-dimensional particle reconstruction. In this paper, we
review and summarise a number of these Liquid Argon Time Projection Chamber
(LArTPC) experiments, and briefly describe the specific technologies that they
currently employ. This includes single phase LAr experiments (ICARUS T600,
MicroBooNE, SBND, LArIAT, DUNE-SP, ProtoDUNE-SP, ArgonCube and Vertical Drift)
and dual phase LAr experiments (DUNE-DP, WA105, ProtoDUNE-DP and ARIADNE). We
also discuss some new avenues of research in the field of LArTPC readout, which
show potential for wide-scale use in the near future.
