These 12 years represent Green’s transition from incandescent lamps to x-ray devices, or from Green Electric Lamp Company to Green & Bauer.
Bauer’s role is unclear: he was described at one point as Green’s employee, but he was a partner in Green & Bauer. Finding patents with Bauer’s name on them might clarify Bauer’s role.
The Courant and the American Journal of Roentgenology both make claims for the significance of Henry Green. Finding patents connected to Green & Bauer would support these claims.