Assignor

ASSIGNOR - A person or entity who has made an assignment of rights or property.

Assignor: To transfer part of an ownership right in a patent application, patent or interest in a patent application or patent.

ASSIGNOR: A person who assigns a right, whether or not he/she is the original owner thereof.

The assignor is the person giving; assigning the item of property.
In Sovereign Fire Insurance v Peters, Justice Richie of Canada's Supreme Court wrote: ...

assignor
the owner of record of a patent application, patent, trademark application or trademark registration who is transferring (assigning) ownership to another entity (assignee)
p,t ...

The consequence was that, with these and certain statutory exceptions (e.g. actions on policies of insurance), an action on an assigned chose in action must have been brought at law in the name of the assignor, ...

The underlessor has a right to distrain for the rent due to him, which, the assignor of a lease has not.

b : to protect or assure by warranty <the ~ed goods> <an assignor is not liable for defaults of the obligor and does not ~ his solvency ­Restatement (Second) of Contracts>
c : to state as a warranty ...

Assign To transfer to another person (the assignee) all or some of the rights and responsibilities that another person (the assignor) holds under a contract.

Clarke, Kenneth (Quotes By)
non est factum
assignor
Chose In Action (legal term) ...

n. assignee is the person or party that gets a transfer of some rights held by one party, the assignor, via signing of some application.
Legal-Explanations.com Home ...

To give, to transfer responsibility, to another. The assignee (sometimes also called "assigns") is the person who receives the right or property being given and the assignor is the person giving.
Attorn or Attornment ...

The person who receives the right or property is the assignee; the assignor is the person giving.
Attachment and committal: Bringing a person before a court, with a threat of imprisonment for failure to obey a court order.

The assignee (sometimes also called "assigns") is the person who receives the right or property being given and the assignor is the person giving. TOP Attorn or Attornment : To consent, implicitly or explicitly, to a transfer of a right.

See also: Right, Person, Property, Law, Assign