United States Patents
#8,186,922: Kotecki, Damian. 2012: Self-shielded Flux Cored Electrode. 

#7,491,910: Kapoor, Ashish, Melfi, Teresa and Kotecki, Damian. 2009: Hardfacing Electrode.

#7,409,869: Kotecki, Damian J. and Babu, Sudarsanam S. 2008. Resistance Test Method.
#6,339,209: Kotecki, Damian J. 2002. Electrode And Flux For Arc Welding Stainless Steel.

#5,120,931: Kotecki, Damian J. and Ogborn, Jonathan S. 1992. Electrode And Flux For Arc Welding Stainless Steel.

#4,449,031: Kotecki, Damian J. 1984. Tubular Composite Arc Welding Electrode For Vertical Up Welding Of Stainless Steel And Nickel-Base Alloys.

#4,314,136: Kotecki, Damian J. 1982. Tubular Composite Arc Welding Electrode For Vertical Up Welding Of Stainless Steel.

#4,294,614: Kotecki, Damian J. 1981. Austenitic Iron-Base Cryogenic Alloy And Arc Welding Electrode For Depositing The Same.