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

David Heim — 28 Patents

IBM: 14 patents #8,031 of 70,183Top 15%
HGHGST: 7 patents #320 of 1,677Top 20%
AMAtrium Medical: 4 patents #25 of 79Top 35%
MTMagic Technologies: 2 patents #28 of 54Top 55%
Portsmouth, NH: #7 of 252 inventorsTop 3%
New Hampshire: #391 of 12,181 inventorsTop 4%
Overall (All Time): #134,628 of 4,157,543Top 4%
28 Patents All Time
David Heim has been granted 28 US patents while listed as an inventor at IBM. The first was granted in 1987 and the most recent in June 2025. David Heim ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list David Heim in Portsmouth, NH, US.

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12336921 Stent device having reduced foreshortening and recoil and method of making same John Lane, Christine Schick, Jennifer LETZELTER, Susan Hamelin 2025-06-24
11865018 Stent device having reduced foreshortening and recoil and method of making same John Lane, Christine Schick, Jennifer LETZELTER, Susan Hamelin 2024-01-09
10842656 Stent device having reduced foreshortening and recoil and method of making same John Lane, Christine Schick, Jennifer L. Vosberg, Susan Hamelin 2020-11-24
10271975 Stent device having reduced foreshortening and recoil and method of making same John Lane, Christine Schick, Jennifer L. Vosberg, Susan Hamelin 2019-04-30
8213132 Magnetic sensor having a physically hard insulation layer over a magnetic bias structure Kim Y. Lee, Tsann Lin, Jih-Shiuan Luo 2012-07-03
8169816 Fabrication methods of partial cladded write line to enhance write margin for magnetic random access memory Tai Min, Wai-Ming J. Kan, Chyu-Jiuh Torng 2012-05-01
7885094 MRAM with cross-tie magnetization configuration Tai Min 2011-02-08
7652855 Magnetic sensor with extended free layer and overlaid leads James Mac Freitag, Kuok San Ho, Wipul Pemsiri Jayasekara, Kim Y. Lee, Tsann Lin +3 more 2010-01-26 $75,000
7630177 Tunnel MR head with closed-edge laminated free layer Robert Beach, Vladimir Nikitin, David J. Seagle 2009-12-08 $93,000
7472469 Method for fabricating a magnetic head having a sensor stack and two lateral stack Kim Y. Lee, Tsann Lin, Jih-Shiuan Luo, Chun-Ming Wang 2009-01-06 $125,000
7344330 Topographically defined thin film CPP read head fabrication Kim Y. Lee, Tsann Lin, Jih-Shiuan Luo 2008-03-18 $190,000
7268981 Spin valve sensor having antiferromagnetic (AFM) pinning layer structures formed in the end regions 2007-09-11 $144,000
7019950 Magnetoresistive sensor having bias magnets with steep endwalls Mustafa Pinarbasi 2006-03-28 $141,000
6122144 Contoured pole tip structures for minimizing side track erasure Thomas Young Chang, Edward Hinpong Lee 2000-09-19 $39,208,000
5935644 Method of making thin film induction recording head having an inset first insulation layer that defines zero throat height and pole tip apex angle Hugo Alberto Emilio Santini 1999-08-10 $20,467,000
5901432 Method for making a thin film inductive write head having a pedestal pole tip and an electroplated gap Michael Armstrong, Richard Hsiao, Neil Leslie Robertson, Hugo Alberto Emilio Santini 1999-05-11 $48,739,000
5793578 Thin film induction recording head having an inset first insulation layer that defines zero throat height and pole tip apex angle Hugo Alberto Emilio Santini 1998-08-11 $8,339,000
5666246 Magnetic storage system with canted hardbias magnetoresistive head Hardayal Singh Gill 1997-09-09 $15,735,000
5638235 Magnetic storage system with canted hardbias magnetoresistive head Hardayal Singh Gill 1997-06-10 $25,796,000
5600519 Controlled saturation thin film magnetic write head Mason Williams 1997-02-04 $17,712,000
5583725 Spin valve magnetoresistive sensor with self-pinned laminated layer and magnetic recording system using the sensor Kevin R. Coffey, Bruce Alvin Gurney, Haralambos Lefakis, Daniele Mauri, Virgil S. Speriosu +1 more 1996-12-10 $30,114,000
5557492 Thin film magnetoresistive head with reduced lead-shield shorting Hardayal Singh Gill 1996-09-17 $12,073,000
5508867 Magnetoresistive sensor with flux keepered spin valve configuration William C. Cain, Po-Kang Wang 1996-04-16
5465185 Magnetoresistive spin valve sensor with improved pinned ferromagnetic layer and magnetic recording system using the sensor Stuart Stephen Papworth Parkin 1995-11-07 $7,474,000
5422571 Magnetoresistive spin valve sensor having a nonmagnetic back layer Bruce Alvin Gurney, Haralambos Lefakis, Omar U. Need, III, Virgil S. Speriosu, Dennis R. Wilhoit 1995-06-06 $7,414,000