Hardy has a considerable number of publications and patents under her name and in collaboration with other scientists.
* The Introduction of Substituted Vinyl Groups. V. A Rearrangement Involving the Migration of an Allyl Group in a Three-Carbon System. Arthur C. Cope and Elizabeth M. Hardy. Publication date: February 1, 1940 
* The Introduction of Substituted Vinyl Groups. VI. The Regeneration of Substituted Vinyl Malonic Esters from their Sodium Enolates.  Arthur C. Cope and Elizabeth M. Hardy. Publication date: December 1, 1940 
* The Rearrangement of Allyl Groups in Three-Carbon Systems. Arthur C. Cope, Corris M. Hofmann and Elizabeth M. Hardy. Publication date: July 1, 1941 
* Aminoalcohols and their Esters. Evelyn M. Hancock, Elizabeth M. Hardy, Dorothea Heyl, Mary Elizabeth Wright and Arthur C. Cope. Publication date: October 1, 1944 
* Study of the Aqueous Esterification of Anthrahydroquinones. Mario Scalera, William B. Hardy, Elizabeth M. Hardy and Asa W. Joyce. Publication Date:July 1, 1951
* Some new methods for preparing bunte salts. Hans Z. Lecher and Elizabeth M. Hardy. Publication date: April 1, 1955 
* Manufacture of sulphuric ester salts of phenols.  Hans Z. Lecher, Plainfleld, Mario Scalera, Somerville , Elizabeth M. Hardy, Bound Brook. Patented: June 25, 1946
* Preparation of pentaalkylguanidines. Hans Z. Lecher, Plainfleld, Elizabeth M. Hardy, Bound Brook, Clement L. Kosloski, North Easton.  Patented: July 29, 1958
* Trichloromethyl benzenethio-sulfonates.  Elizabeth M. Hardy and John F. Hosler, Bound Brook, Glentworth Lamb, Stamford. Patented: March 24, 1959
* Trichloromethyl 2-methoxy-5-phosphono-benzenethiolsulfonate pesticides. Elizabeth M. Hardy, Hohokus Patented: January 16, 1962 
* Preparation of s-aryl-thiosulfuric acids.  Hans Z. Lecher, Plainfleld, Elizabeth M. Hardy, Bound Brook. Patented: April 12, 1955
* Preparation of s-aryl-thiosulfuric acids.  Hans Z. Lecher, Plainfleld, Elizabeth M. Hardy, Bound Brook. Patented: July 5, 1955
* 4-alkylmorpholine sulfur trioxide compounds.  Mario Scalera, Somerville, Charles T. Lester, De Kalb, Elizabeth M. Hardy, Bound Brook. Patented: November 30, 1948
* Soluble vat dyes of the acridone series. William B. Hardy and Elizabeth M. Hardy, Bound Brook. Patented: August 18, 1953