Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David L. Lund — 23 Patents

GTGnb Technologies: 10 patents #2 of 37Top 6%
GTGnb Battery Technologies: 5 patents #1 of 19Top 6%
GBGnb Batteries: 4 patents #2 of 36Top 6%
TATaylor-Winfield: 3 patents #2 of 7Top 30%
Minneapolis, MN: #210 of 6,114 inventorsTop 4%
Minnesota: #2,936 of 52,454 inventorsTop 6%
Overall (All Time): #178,160 of 4,157,543Top 5%
23 Patents All Time
David L. Lund has been granted 23 US patents while listed as an inventor at Gnb Technologies. The first was granted in 1983 and the most recent in October 2001. David L. Lund ranks #178,160 of 4,157,543 US inventors in our database (top 4.3%). Patent records list David L. Lund in Minneapolis, MN, US.

Patents per Year

Patents granted per year, 1983 to 2001Bar chart with a peak of 6 patents in 1999.peak 61983: 1 patents19831984: 1 patents1985: 2 patents19851986: 1 patents1987: 2 patents19871995: 3 patents1996: 1 patents19961997: 3 patents1998: 2 patents19981999: 6 patents2001: 1 patents2001

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
6309429 Lead acid storage battery and method of bonding battery cell terminal posts and bushings William H. Kump, Rodger Willing 2001-10-30
6008480 Induction heating apparatus and method for fusing battery cell terminals 1999-12-28
5972535 Method and apparatus for attaching terminal post straps to a battery plate group William H. Kump, Charles J. DiMarco 1999-10-26
5924471 Method of fabricating lead bushings and batteries using same William H. Kump 1999-07-20
5908714 Method of making lead-acid cell-to-cell connections and the resulting battery Thomas E. Lawrence, William H. Kump 1999-06-01
5905002 Lead acid storage battery William H. Kump, Rodger Willing 1999-05-18
5886325 System and method for controlling the degree of heating experienced by a work coil in an induction heating generator 1999-03-23
5836371 Method and apparatus for attaching terminal post straps to a battery plate group William H. Kump, Charles J. DiMarco 1998-11-17
5834743 Induction heating apparatus and method for fusing intercell connectors to battery cell terminals Charles J. DiMarco 1998-11-10
5682671 Method of assembling a bipolar battery and bipolar battery William H. Kump, Donald W. Groff 1997-11-04
5658690 Modular molded components for a bipolar battery and the resulting bipolar battery Stephen G. Petrakovich 1997-08-19
5595840 Method of manufacturing modular molded components for a bipolar battery and the resulting bipolar battery Jeffrey M. Henning 1997-01-21
5512065 Methods for assembling lead-acid batteries William H. Kump, James K. Klang, Jeffrey M. Henning 1996-04-30
5470679 Method of assembling a bipolar lead-acid battery and the resulting bipolar battery William H. Kump, Donald W. Groff 1995-11-28
5429643 Method of assembling a bipolar lead-acid battery and the resulting bipolar battery William H. Kump, Donald W. Groff 1995-07-04
5385587 Methods and apparatus for pasting battery current collectors Donald W. Groff, James J. Bonk, Kenneth S. Rumsey 1995-01-31
4661668 Welding intercell connections by induction heating William E. Mullane 1987-04-28
4642442 Battery intercell connection by induction heating William E. Mullane 1987-02-10
4573260 Induction heated intercell fusion for lead/acid storage battery William E. Mullane 1986-03-04
4523068 Apparatus and method for fusing battery terminals Senajit J. Majumdar, William E. Mullane, Louis Krivanek 1985-06-11
4501943 Apparatus and method for fusing battery terminals with improved induction heating power control 1985-02-26
4485959 Means for welding intercell connections Daniel Orlando, Glenn R. Waber 1984-12-04
4406057 Method of making lead-acid battery element stack Thomas Oswald 1983-09-27