by Ester H. Mark, representative has been granted 3 US patents while listed as an inventor at GE. The first was granted in 1987 and the most recent in October 1989. by Ester H. Mark, representative ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list by Ester H. Mark, representative in Springville, NY, US.