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Steward E. Purdy — 4 Patents

GAGaf: 2 patents #60 of 169Top 40%
GCGaf Chemicals: 2 patents #30 of 58Top 55%
Binghamton, NY: #106 of 500 inventorsTop 25%
New York: #31,814 of 115,490 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Steward E. Purdy has been granted 4 US patents while listed as an inventor at Gaf. The first was granted in 1988 and the most recent in March 1991. Steward E. Purdy ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Steward E. Purdy in Binghamton, NY, US.

Patents per Year

Patents granted per year, 1988 to 1991Bar chart with a peak of 2 patents in 1988.peak 21988: 2 patents19881990: 1 patents19901991: 1 patents1991

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5002852 Recording medium of improved stability David F. Lewis, Mark L. Moskowitz 1991-03-26
4970137 Process for sensitizing polyacetylenic films David F. Lewis 1990-11-13
4784934 Sensitivity of processless recording media David F. Lewis, Mark L. Moskowitz 1988-11-15 $6,954,000
4734355 Sensitivity of processless recording media David F. Lewis, Mark L. Moskowitz 1988-03-29 $18,659,000

Frequent Collaborators

David F. Lewis4 shared
Mark L. Moskowitz3 shared

Nearby-Ranked Inventors

Jagadeesh Kandasamy4
Ross CABOT4
George Ueda4
Franz A. Gruswitz4
Tommy Glimberg4
Vinayakaraddy Gulabal4
Sandra Bittorf4
Aviel FOGEL4
Eric Matthew Walton4