The invention is a method of forming a conductive coating on a structural substrate. The method involves depositing a relatively non-conductive precursor material in a solution state on the structural substrate using inkjet apparatus. The solution is dried to leave a film. Then, the dried film is heated...http://www.google.de/patents/US5652019?utm_source=gb-gplus-sharePatent US5652019 - Method for producing resistive gradients on substrates and articles produced thereby
