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USPTO Patent Rankings Data through Dec 31, 2025
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David D. Saperstein — 5 Patents

IBM: 3 patents #26,335 of 70,183Top 40%
Merck: 2 patents #3,930 of 9,382Top 45%
Mountainside, NJ: #39 of 143 inventorsTop 30%
New Jersey: #16,606 of 69,400 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
David D. Saperstein has been granted 5 US patents while listed as an inventor at IBM. The first was granted in 1980 and the most recent in July 1991. David D. Saperstein ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list David D. Saperstein in Mountainside, NJ, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5030478 Process for bonding lubricants to thin film recording media Li-Ju Lin 1991-07-09 $11,976,000
4960609 Process for bonding lubricant to a thin film magnetic recording disk Andrew M. Homola, Li-Ju Lin 1990-10-02 $14,648,000
4511986 Method and apparatus for simultaneously recording multiple FT-IR signals Robert J. Bellar, William G. Golden, Ashok Vats 1985-04-16 $15,976,000
4230883 Preparation of hydroxyphenylalanine hydrohalide salts Seemon Pines 1980-10-28 $6,225,000
4182926 Catalytic process for obtaining methane from methanol 1980-01-08 $6,211,000