Willing to use the patent where I am an inventor,I am not a applicant

Unless the Inventor is also the applicant, the Inventor will not have any commercial rights conferred by the patent.

So, in case, if you are not the Co-Applicant in an already secured Patent for your novile technical process/product, then you cannot commercially use or exploit patents without the permission of the Patent Owner who is a Patent-Applicant in that case. In case, if you are the Co-Applicant while filing a Patent, so as such, after procuring the Patent, you have become the Co-owner of Patent & as such, this is the case of Joint-Patent-Ownership, you cannot as a Co-owner, without the permission of other Co-owner commercial use, exploit, sell and/given on licence already procured/secured Patent, thus in your case, by both of you together (you and the company) as the Joint-Patent Owners.