I developed 2 products for pipeline pigging industry - quick opening closure and pig signaler. These are available in the market, but with my innovations, the unique features of both are:
Quick opening closure - very simple design, easily operatable by single user and opens up within 30 secs. Meets the ASME standards completely.
Pig signaler - This devices indicates the arrival of pig in the pipelines by local indication or electrical connection to control room. I developed an SMS facility in the device to give remote signal to client everytime pig is received.