The phrase "and concentrated on developing" is correct and usable in written English.
You can use it when describing a focus or effort directed towards a specific task or project, particularly in a professional or academic context.
Example: "The team worked diligently on the project and concentrated on developing innovative solutions to the challenges we faced."
Alternatives: "and focused on creating" or "and dedicated efforts to advancing".
Instead they will enter a transition period, likely letting veteran free agents like Reggie Wayne and Robert Mathis leave and concentrating on developing a team around their new franchise quarterback.
There have been suggestions that Nintendo may be about to abandon hardware production entirely and concentrate on developing its world-respected IP, such as Super Mario Bros, Mario Kart and Zelda on other devices.
When the couple returned to the U.S., Foote decided to forgo Harvard Business School and concentrate on developing an organization that would issue credit to farmers in poor countries.
After the game was canceled, the studio abandoned further attempts to create their own IP and instead concentrated on developing licensed games, such as Transformers and Deadpool.
By 1928, the reunification of China was complete -- at least on paper -- and Chiang concentrated on developing a viable centralized government under nationalist single-party control, and in working toward the final extermination of the Communists.
By the late 1950s, Mr. Murray and his wife concentrated on developing a hotel property in the Poconos that became a premier resort for blacks.
In contrast, researchers developing phylogenetic inference methods have mostly ignored any uncertainty associated with the MSA step, and instead have concentrated on developing methods that assume a known MSA.
For much of the last 30 years, growth and yield research has concentrated on developing individual tree growth and yield models (Adlard 1995; Fox et al. 2007; Weiskittel et al. 2011a).
It's one of the best ways to keep your cost structure low and your internal resources concentrated on developing your business.
This paper has concentrated on developing and testing the latter.
