Rodericus Williams, 48, who sometimes goes by Roderick, faces up to 15 years in prison for the felony conviction and up to 11 months and 29 days for aggravated criminal trespass.
He will be sentenced Feb. 27 by Criminal Court Judge Lee Coffee.
Williams committed the aggravated assault on April 16, 2013, when he struck the 52-year-old woman in the face and pulled her hair during an argument while she was driving a car on Leflore Place in South Memphis where they lived.
Since he violated bond conditions from a previous domestic assault and a protective order had been issued, the assault was a felony.
An hour later, after police left, Williams returned to their residence and punched her in the face more than a half dozen times. The woman grabbed a knife to defend herself, but cut her own fingers in the process.
The jury returned a verdict of aggravated criminal trespass on that incident.
Williams, who remains in custody, has six prior felonies and two domestic violence convictions which are misdemeanors.
He has been arrested six times since 2011 for alleged assaults involving his girlfriend, though most of those cases were dismissed when the victim failed to show up for court.
The case at trial this week initially was dismissed in a lower court because the victim did not show up, but it still was sent to a grand jury for indictment after information was presented to establish probable cause.
Williams also has another pending domestic assault case involving his girlfriend.
The case this week has handled by assistant district attorneys Jeff Jones and Leslie Fouche of the DA’s Intimate Partner/Domestic Violence Prosecution Unit (IP/DVPU.)
The unit prosecutes felony cases of domestic assault and homicide committed by intimate partners. The Unit also works closely with the Shelby County Family Safety Center to provide services and assistance to victims and their families.