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

Albert C. Stone — 6 Patents

Delphi Technologies: 6 patents #520 of 4,124Top 15%
Grandville, MI: #33 of 219 inventorsTop 20%
Michigan: #15,817 of 86,293 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Albert C. Stone has been granted 6 US patents while listed as an inventor at Delphi Technologies. The first was granted in 2000 and the most recent in May 2010. Albert C. Stone ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Albert C. Stone in Grandville, MI, US.

Patents per Year

Patents granted per year, 2000 to 2010Bar chart with a peak of 1 patents in 2000.peak 12000: 1 patents20002002: 1 patents20022003: 1 patents20032006: 1 patents20062009: 1 patents20092010: 1 patents2010

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7721694 Lock pin retention plug for a two-step rocker arm assembly Hermes A. Fernandez 2010-05-25
7614375 Roller bearing and z-stop for a two-step roller finger follower Cynthia A. Tawaf, Andrew J. Lipinski, William D. Bauman, Carl R. Kangas, Eric G. Wilusz +2 more 2009-11-10
7093575 Pin housing sub-assembly for an hydraulic valve lifter William D. Bauman, Carl R. Kangas, Fred C. Schouw 2006-08-22
6578535 Valve-deactivating lifter Mark J. Spath, Carl R. Kangas 2003-06-17 $2,914,000
6497207 Deactivation roller hydraulic valve lifter Mark J. Spath, Carl R. Kangas, David McCarthy 2002-12-24 $1,614,000
6148780 Hydraulic element assembly Daniel Patrick O'Neill, Charles M. Philo, William P. Vukovich 2000-11-21 $11,595,000