But the brothers remained in close touch, and over the last two years collaborated cross-country on a patent that has just been issued.

Together, he and his brother collaborated on the following:

The brothers collaborated on a series of 'London Characters' in 1827.

The two brothers often collaborated on illustrations, sometimes with Robert doing the drawing and John the coloring.

In the next years, Géza and his brothers collaborated successfully with the king.

My brother collaborated with them, he was working for the overthrow of this country.

The brothers Finn collaborated on another album in 1995, playing most of the instruments themselves.

Phonetics dispute aside, he and his brother did collaborate.

The brothers would collaborate on weekends while Paul was still in school, with Thomas writing and demoing their ideas during the week.

Although the brothers still collaborated, Patrick decided to no longer participate in live performing due to health concerns.