Apart from registering a company or a Limited Partnership, is there any way to reserve a business name in Thailand?

I know in some countries you can register a business name so that it is reserved for use in the future.

You can in Thailand, but as far as I know the reservation is only valid for 90 days.

Not sure if that period can be extended.

My staff does this on-line at the following website:

http://www.dbd.go.th/mainsite/

You can in Thailand, but as far as I know the reservation is only valid for 90 days.

Not sure if that period can be extended.

My staff does this on-line at the following website:

http://www.dbd.go.th/mainsite/

Thanks, Monty... having looked at the site, and I am sure that it is the right place. However, my tired eyes cannot locate where to do it. Have looked at all the obvious places.