Patni is a surname found among some Jain families. But a surname alone does not तय/decide a person’s Jain sect or lineage.

In Jain society, people with the Patni surname may belong to different traditions such as:

• Shwetambar
• Digambar
• different gachh / sampradaya / caste-group backgrounds depending on family history

So, “Patni” is a family name, not a Jain sect name.

If you are asking in a Jain context, the correct understanding is:

• They may be Jain
• They may also belong to other communities
• Identity in Jain Dharma is not decided by surname only, but by family tradition, sampradaya, and religious practice

If you want, I can also explain how to पहचानें whether a surname is commonly Jain or not in a Jain context.