Does that mean

whenever you have a H1b, no matter it is expired or not, you can transfer your h1B or apply for a new H1b based on that quota at anytime?

My case is my H1b was expired in Mar. If now a new company wants to transfer my H1b, can they use this previous one or they need to apply for a new one as now this year's quota has not been used up?

Thanks!