Neuropathix Inc. (KLFE: OTCQB) | Symbol Change Fri, Nov 06, 2020 12:00 - Neuropathix Inc. ( KLFE : OTCQB) - Symbol Change - The symbol, KLFE, is no longer a valid symbol for Neuropathix Inc.. As of Fri, Nov 06, 2020, the new trading symbol is NPTX. You may find a complete list of symbol changes at otcmarkets.com .