Get Process owner name from windows C#

using System.Management;

private void btnGetProcessOwner_Click(object sender, EventArgs e)

        {

            string ProcessName = txtProcessName.Text.Trim();

            string ProcessOwner = "";

            ObjectQuery x = new ObjectQuery("Select * From Win32_Process where Name='"+ProcessName+"'");

            ManagementObjectSearcher mos = new ManagementObjectSearcher(x);

            foreach (ManagementObject mo in mos.Get())

            {

                string[] s = new string[2];

                mo.InvokeMethod("GetOwner", (object[])s);

                ProcessOwner = s[0].ToString();

                break;

            }

            MessageBox.Show(ProcessOwner);

        }