A promising trend has emerged in C3.ai's business.Founded in 2009, C3.ai (AI -0.66%) was one of the world's first enterprise artificial intelligence (AI) companies. It has built a portfolio of over 40 ready-made AI applications for businesses in 19 different industries, including financial services, energy, and manufacturing. Those businesses can integrate the apps directly into their operations, saving them the time and money otherwise required to build their own from scratch.Around two years ago, C3.ai ab ...