"treated as having" is correct and can be used in written English.
It is typically used to describe a situation where something is being perceived or considered as possessing or experiencing something, even though it may not actually possess or experience it. Example: "Even though he did not have a job, he was treated as having a high income due to his family's wealth."
Corporations are treated as human beings and money is treated as having the right to speak.
And should be treated as having the same potential as men have.
That meant that MCI debts would be treated as having no priority over WorldCom debts, despite what had been said repeatedly by the company.
He should be automatically treated as having a limited capability for work or a limited capacity for work-related activities as he is terminally ill.
In wiki arrangement, the lyrics are treated as having no intrinsic value beyond the references they make; as raw data, they are done away with almost entirely.
Those rules specified that loans to member states should be treated as having zero risk, so long as the country was borrowing in its local currency.
But the former Eastern pilots from the shuttle are unlikely to be treated as having more seniority than pilots at United Airlines, which hired many of its pilots in the 1970's and 1980's.
Thus, the sulfate ion, SO42−, for which a Lewis structure is can be treated as having the equivalent of four pairs (two ordinary pairs and two superpairs) around the sulfur atom in a tetrahedral arrangement.
KATEKILLA, Boston, 11 15 a.m., May 25, nytimes.com People with disabilities do things every day that able-bodieds would no doubt find difficult, yet we are treated as weak; forced adaptation breeds intelligence, yet we are treated as dumb; being disabled gives one a unique perspective, yet we are treated as having nothing to offer.
Müller himself reacted rather sharply by adopting a different theory, which expressed his philological slant namely, that polytheism was the result of a disease of language, in which the terms for natural phenomena came to be treated as having independent and personal reality: nomina ("names") became numina ("spirits").
Cow dung is treated as having anti infection properties and used for domestic purposes.
