Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Douglas A. Nolte — 21 Patents

THTruth Hardware: 13 patents #3 of 73Top 5%
THTruth Holding: 4 patents #5 of 37Top 15%
TNThe Nutrasweet: 1 patents #43 of 94Top 50%
Owatonna, MN: #18 of 233 inventorsTop 8%
Minnesota: #3,324 of 52,454 inventorsTop 7%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Douglas A. Nolte has been granted 21 US patents while listed as an inventor at Truth Hardware. The first was granted in 1989 and the most recent in December 2024. Douglas A. Nolte ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Douglas A. Nolte in Owatonna, MN, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12163361 Roll-form tie bar and guide for casement window Craig M. Doring, Zach Pennaz 2024-12-10
11866968 Tie bar and guide for casement window Craig M. Doring, Zach Pennaz 2024-01-09
D980708 Casement window operator handle and cover 2023-03-14
D930465 Casement window operator cover and folding handle Brian Dallmann 2021-09-14
D913783 Casement window operator cover and handle 2021-03-23
10787853 Integrated casement window operator and lock with anti-backdrive feature Glen M. Wolf, Gregory J. Vetter, Zach Pennaz 2020-09-29
9593516 Multi-point mortise lock mechanism for swinging door Yoshikazu Nakanishi, Manabu Shimoji, Craig M. Doring 2017-03-14
8899635 Sliding door multipoint mortise lock with shoot bolts Yoshikazu Nakanishi, Manabu Shimoji 2014-12-02
8550506 Multi-point mortise lock mechanism for swinging door Yoshikazu Nakanishi, Manabu Shimoji, Craig M. Doring 2013-10-08
D583646 Sliding door handle Sherry L. Jones 2008-12-30
D572996 Sliding door handle Sherry L. Jones 2008-07-15
7322619 Integrated lock and tilt-latch mechanism for a sliding window Kenneth E. Best, Clark Velzke, Edward J. Subliskey, Anthony J. Rotondi, Glen M. Wolf 2008-01-29
6506434 Process for coating N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester onto a carrier Allan Towb 2003-01-14 $16,346,000
5582442 Latch assembly and manufacturing and painting processes 1996-12-10
5467503 Handle and cover assembly for a window operator Gregory J. Vetter, Kenneth E. Best, Dennis Krampotich 1995-11-21
5272837 Operator for an awning type window Gregory J. Vetter 1993-12-28 $1,955,000
D316509 Window lock 1991-04-30
4991886 Window lock Peter E. Braun 1991-02-12
4938086 Window operator Dennis J. Rooney, Christopher T. Sandberg 1990-07-03
4845830 Method of assembling a window operator Dennis J. Rooney 1989-07-11
4843703 Method of assembling a window operator Dennis J. Rooney, Christopher T. Sandberg 1989-07-04