Interesting question.
Same inventor (Dr Melrose), however Chemeq retained ownership of the patents to its products when Dr Melrose resigned. When Chemeq folded, ownership of its patents passed to a company called Chemeq Technologies Pty Ltd. When RECCE filed for patents for RECCE-327, this was challenged by Portison Pty Ltd, a company claiming to have acquired all the intellectual property of Chemeq Ltd and Chemeq Technologies Pty Ltd. RECCE's response to this is below.
https://www.asx.com.au/asxpdf/20151125/pdf/4338flp49tbsqn.pdf
At the very least, both the Chemeq and RECCE products have broad-spectrum efficacy against bacteria and viruses, so seem to be uncannily similar (and were both invented by Dr Melrose). There doesn't seem to have been subsequent legal action that I can find, however, and RECCE's patents have been granted.
(20min delay)