Using comma in search parameters for suppliername

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How do you escape a comma in a query in a REST call?  For instance, in q : Supplier=Jones, White and Hunt  the comma causes issue?

I've tried Supplier="Jones, White and Hunt" and Supplier="Jones\, White and Hunt" and Supplier="Jones%, White and Hunt" and Supplier="Jones?, White and Hunt"

Also tried Supplier="Jones%2c White and Hunt" and Supplier="Jones%2c, White and Hunt" don't work. (Also tried with Capital C, but no result either)

As well as Supplier="Jones, White and Hunt" 

No luck on any of them.

code being used (python) is:
headers = {'Content-Type' : 'application/vnd.oracle.adf.resourcecollection+json',}