W. Va. Code § 46-9-310 – When filing required to perfect security interest or agricultural lien; security interests and agricultural liens to which filing provisions do not apply.

(a) General rule: Perfection by filing. Except as otherwise provided in subsection (b) of this section and section 9-312(b), a financing statement must be filed to perfect all security interests and agricultural liens.
(b) Exceptions: Filing not necessary. The filing of a financing statement is not necessary to perfect a security interest:
1. (1) That is perfected under section 9-308(d), (e), (f) or (g);
2. (2) That is perfected under section 9-309 when it attaches;
3. (3) In property subject to a statute, regulation or treaty described in section 9-311(a);
4. (4) In goods in possession of a bailee which is perfected under section 9-312(d)(1) or (2);
5. (5) In certificated securities, documents, goods or instruments which is perfected without filing, control, or possession under section 9-312(e), (f) or (g);
6. (6) In collateral in the secured party's possession under section 9-313;
7. (7) In a certificated security which is perfected by delivery of the security certificate to the secured party under section 9-313;
8. (8) In deposit accounts, electronic chattel paper, electronic documents, investment property or letter-of-credit rights which is perfected by control under section 9-314;
9. (9) In proceeds which is perfected under section 9-315; or
10. (10) That is perfected under section 9-316.
(c) Assignment of perfected security interest. If a secured party assigns a perfected security interest or agricultural lien, a filing under this article is not required to continue the perfected status of the security interest against creditors of and transferees from the original debtor.