Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MH

Mark Heisler — 7 Patents

GSGelman Sciences: 7 patents #1 of 48Top 3%
Saline, MI: #105 of 509 inventorsTop 25%
Michigan: #13,705 of 86,293 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Mark Heisler has been granted 7 US patents while listed as an inventor at Gelman Sciences. The first was granted in 1989 and the most recent in November 1992. Mark Heisler ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Mark Heisler in Saline, MI, US.

Patents per Year

Patents granted per year, 1989 to 1992Bar chart with a peak of 3 patents in 1990.peak 31989: 1 patents19891990: 3 patents19901991: 1 patents19911992: 2 patents1992

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5160626 Blotting methods using polyaldehyde activated membranes Kariyawasam P. W. Pemawansa, Menahem Kraus 1992-11-03 $262,000
5108607 Filtration membranes and method of making the same Menaham Kraus, Inessa Katsnelson, Diosie Velazques 1992-04-28 $239,000
4992172 Blotting methods using polyaldehyde activated membranes Kariyawasam P. W. Pemawansa, Menahem Kraus 1991-02-12 $202,000
4964990 Filtration membranes and method of making the same Menaham Kraus, Inessa Katsnelson, Diosie Velazques 1990-10-23 $160,000
4961852 Polyaldehyde activated membranes Kanyawasam P. W. Pemawansa, Menahem Kraus 1990-10-09 $180,000
4900449 Filtration membranes and method of making the same Menaham Kraus, Inessa Katsnelson, Diosie Velazques 1990-02-13 $216,000
4824870 Polyaldehyde activated membranes Kariyawasam P. W. Pemawansa, Menahem Kraus 1989-04-25 $274,000