The application cited was granted as US9016652B2. Normally one would expect that patent to expire 08-20-2029. However it costs money to maintain a patent and it looks like the patent has expired due to non payment of required fees. Similarly for US8201796B2 by the same inventor. These are US patents. There are no worldwide patents. Patents are specific to countries. I found a world patent application. But it doesn't look like it has issued anywhere. I'm not sure whether or not the fee related expiration can be overcome, but for now the US patents shouldn't be enforceable.
Just to note, I am not a lawyer so this isn't legal advice. Avoiding infringement on one patent doesn't guarantee freedom to operate over all patents. If you want to be safe, you should absolutely engage an attorney to determine if you have freedom to operate.