国家/地区 美国（2） 世界知识产权组织（2）
IPC部 B（2）
IPC大类 B05（2）
IPC小类 B05D（2）
IPC B05D005/12（2）
发明人 SCHEFFER D（3）
公开年 2012（3）
申请年 2011（3） 
专利权人 VORBECK MATE.（3） SCHEFFER D（2）

Composition, useful for coating a substrate e.g. glass, lens, metals, fabrics, textiles, ceramics, silicon surfaces, cardboard, paperboard, cellulose-based materials, wood and paper, comprises graphene sheets, binder, and polyalkylene imine.

SCHEFFER D, VARMA V, MONIE S

Multilayered security device useful for preventing tampering comprises a first layer comprising a patterned substrate and a second layer overlying the pattern where the second layer comprises a coating composition comprising graphene sheets.

LETTOW J, SCHEFFER D, LETTOW J S

Making conductive image useful in e.g. security device, involves forming image on substrate, overcoating the image with coating containing graphene sheets, and removing a portion of the coating from the substrate.

REDMOND K, SCHEFFER D