A few weeks ago my manager from a previous company contacted me asking if he could include research I completed while working there in a conference paper he was writing. He said the paper would be an overview of what his team had been doing recently intimating there would be other research results in there also.
I quickly agreed. After all, I had no intention to publish myself, due to the very obscure field of research, and I didn't actually own the intellectual property, the company did. My ex-manager was being kind by asking. (I will add, it was good research; I solved a long-standing problem in the field.)
A few days ago, my ex-manager sent me a draft of the conference paper for comments. After looking over the paper it was exclusively my ideas. Moreover, the co-authors were me, himself, and his superior who had little to no input on the research.
Now, it's fair that he credits himself when he's gone through the hard effort of turning messy technical notes into a presentable paper. But I feel like I have in some ways been misled, in particular with the crediting of my ex-manager's superior and also in being told the paper would be work from the whole department which was clearly not true.
The problem is I like this company and would like to keep friendly relationships with them in case I want to return there in the future. Is there a polite way of querying my ex-manager about this without burning bridges?