diff --git a/chainlib/eth/owned.py b/chainlib/eth/owned.py
new file mode 100644
index 0000000..c058118
--- /dev/null
+++ b/chainlib/eth/owned.py
@@ -0,0 +1,67 @@
+# external imports
+from hexathon import (
+        add_0x,
+    )
+
+# local imports
+from .contract import (
+        ABIContractEncoder,
+        ABIContractDecoder,
+        ABIContractType,
+    )
+from chainlib.jsonrpc import jsonrpc_template
+
+class EIP173(TxFactory):
+
+    def transfer_ownership(self, contract_address, sender_address, new_owner_address):
+        enc = ABIContractEncoder()
+        enc.method('transferOwnership')
+        enc.typ(ABIContractType.ADDRESS)
+        enc.address(new_owner_address)
+        data = add_0x(enc.get())
+        tx = self.template(sender_address, contract_address, use_nonce=True)
+        tx = self.set_code(tx, data)
+        tx = self.finalize(tx, tx_format)
+        return tx
+
+
+    def owner(self, contract_address, sender_address=ZERO_ADDRESS):
+        o = jsonrpc_template()
+        o['method'] = 'eth_call'
+        enc = ABIContractEncoder()
+        enc.method('owner')
+        data = add_0x(enc.get())
+        tx = self.template(sender_address, contract_address)
+        tx = self.set_code(tx, data)
+        o['params'].append(self.normalize(tx))
+        o['params'].append('latest')
+        return o
+
+
+    @classmethod
+    def parse_owner(self, v):
+        return abi_decode_single(ABIContractType.ADDRESS, v)
+
+
+class Owned(EIP173):
+
+    def accept_ownership(self, contract_address, sender_address):
+        enc = ABIContractEncoder()
+        enc.method('acceptOwnership')
+        data = add_0x(enc.get())
+        tx = self.template(sender_address, contract_address, use_nonce=True)
+        tx = self.set_code(tx, data)
+        tx = self.finalize(tx, tx_format)
+        return tx
+
+
+    def take_ownership(self, contract_address, sender_address, resource_address):
+        enc = ABIContractEncoder()
+        enc.method('takeOwnership')
+        enc.typ(ABIContractType.ADDRESS)
+        enc.address(resource_address)
+        data = add_0x(enc.get())
+        tx = self.template(sender_address, contract_address, use_nonce=True)
+        tx = self.set_code(tx, data)
+        tx = self.finalize(tx, tx_format)
+        return tx
diff --git a/tests/test_eip165.py b/tests/test_eip165.py
index c76f322..ca4955b 100644
--- a/tests/test_eip165.py
+++ b/tests/test_eip165.py
@@ -24,7 +24,6 @@ class TestSupports(EthTesterCase):
 
     def setUp(self):
         super(TestSupports, self).setUp()
-        #nonce_oracle = TestNonceOracle(self.accounts[0])
         self.conn = RPCConnection.connect(self.chain_spec, 'default')
         nonce_oracle = RPCNonceOracle(self.accounts[0], self.conn)
 
diff --git a/tests/test_owned.py b/tests/test_owned.py
new file mode 100644
index 0000000..cb893b7
--- /dev/null
+++ b/tests/test_owned.py
@@ -0,0 +1,52 @@
+# standard imports
+import unittest
+import os
+import logging
+
+# local imports
+from chainlib.eth.unittest.ethtester import EthTesterCase
+from chainlib.eth.nonce import RPCNonceOracle
+from chainlib.eth.gas import OverrideGasOracle
+from chainlib.connection import RPCConnection
+from chainlib.eth.tx import (
+        TxFactory,
+        receipt,
+        )
+from chainlib.eth.eip165 import EIP165
+
+logging.basicConfig(level=logging.DEBUG)
+logg = logging.getLogger()
+
+script_dir = os.path.realpath(os.path.dirname(__file__))
+
+
+class TestOwned(EthTesterCase):
+
+    def setUp(self):
+        super(TestOwned, self).setUp()
+        self.conn = RPCConnection.connect(self.chain_spec, 'default')
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.conn)
+
+        f = open(os.path.join(script_dir, 'testdata', 'Owned.bin'))
+        code = f.read()
+        f.close()
+
+        txf = TxFactory(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        tx = txf.template(self.accounts[0], None, use_nonce=True)
+        tx = txf.set_code(tx, code)
+        (tx_hash_hex, o) = txf.build(tx)
+
+        r = self.conn.do(o)
+        logg.debug('deployed with hash {}'.format(r))
+
+        o = receipt(tx_hash_hex)
+        r = self.conn.do(o)
+        self.address = r['contract_address']
+
+    
+    def test_owned(self):
+        pass
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/testdata/Owned.bin b/tests/testdata/Owned.bin
new file mode 100644
index 0000000..788a5d9
--- /dev/null
+++ b/tests/testdata/Owned.bin
@@ -0,0 +1 @@
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
\ No newline at end of file
diff --git a/tests/testdata/Owned.sol b/tests/testdata/Owned.sol
new file mode 100644
index 0000000..90846ce
--- /dev/null
+++ b/tests/testdata/Owned.sol
@@ -0,0 +1,32 @@
+pragma solidity ^0.8.0;
+
+contract Owned {
+	address public owner;
+	address newOwner;
+
+	constructor() public {
+		owner = msg.sender;	
+	}
+
+	function transferOwnership(address _newOwner) public returns (bool) {
+		require(owner == msg.sender);
+		newOwner = _newOwner;
+		return true;
+	}
+
+	function acceptOwnership() public returns (bool) {
+		require(newOwner == msg.sender);
+		owner = msg.sender;
+		newOwner = address(0);
+		return true;
+	}
+
+	function takeOwnership(address _ownable) public returns (bool) {
+		bool ok;
+		bytes memory result;
+
+		(ok, result) = _ownable.call(abi.encodeWithSignature("acceptOwnership()"));
+		require(ok, "ERR_ACCEPT");
+		return true;
+	}
+}