I started by ironing the tear. I ironed all of the threads towards the rip.
I then took a small embroidery hoop + stretched the area taught.
Here is a (very poor) illustration of the basic idea of what I did. I started by stitching vertically across the whole tear. Then I horizontally, I weaved in + out of the vertical stitches.
I repeated this about three times, until I was satisfied with the strength of the patch.
It's true, you can defiantly see the patch, but luckily this area is right under my knee + is less noticeable. I've since worn these jeans + even washed them + the patch held just fine.
How do you patch your jeans?