I'm really confused. The only "Patch Repair" I know about comes in a large bag of seed mixed in with bellowy, cottony matter of fertilizer and material to retain water to help with germination. Yet, you refer to seeds and burying them. Following the instructions on the bag, that stuff grows. The thing about it is being careful to spread it well. If it's too thick, it will only crystalize and the seeds won't germinate. I also think you've been watering too much. At any rate, it's all water under the bridge now.

Sounds like you have some renovating to do because that much rock and being so close in the soil isn't going to allow anything to grow. The roots of grass need somewhere to go without obstruction. Depending on what grass you wish to grow there in Pennsylvania, some grass roots only grow 5-8 inches, while others grow much deeper into the soil. The way you describe so much rock, you won't get anything much to grow there.

This article, Zones of Soil will help with determining how much subsoil and topsoil there should be and how to slope it. That will be an excellent time to incorporate compost into your (new) soil. Not sure if you're prepared to have to do such renovating. If so, you'll need to first get the rocks out. Incidentally, you can't do it until fall, mid-late August. Refer again to the Lawn Care Forum if you'd like methods for renovation suggestions, methods for seeding suggestions, and seed blend suggestions, and leave that patch stuff in the store.