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

Dennis Mraz — 25 Patents

DTDm Technologies: 8 patents #1 of 1Top 100%
DEDm Enterprises: 6 patents #1 of 2Top 50%
DTDeep Shaft Technology: 1 patents #2 of 2Top 100%
Saskatoon, CA: #29 of 909 inventorsTop 4%
Overall (All Time): #158,593 of 4,157,543Top 4%
25 Patents All Time
Dennis Mraz has been granted 25 US patents while listed as an inventor at Dm Technologies. The first was granted in 1988 and the most recent in August 2005. Dennis Mraz ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Dennis Mraz in Saskatoon, SK, CA.

Patents per Year

Patents granted per year, 1988 to 2005Bar chart with a peak of 4 patents in 1989.peak 41988: 3 patents19881989: 4 patents1990: 2 patents19901991: 2 patents1993: 2 patents19931996: 3 patents1998: 1 patents19981999: 2 patents2000: 1 patents20002001: 1 patents2003: 1 patents20032004: 2 patents2005: 1 patents2005

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
6926368 Method and apparatus for remote self-propelled conveying in mineral deposits 2005-08-09
6799809 Method and apparatus for remote self-propelled conveying in mineral deposits 2004-10-05
6698843 Method and apparatus for remote self-propelled conveying in mineral deposits 2004-03-02
6644753 Method and apparatus for remote self-propelled conveying in mineral deposits 2003-11-11
6220670 Method and apparatus for remote self-propelled conveying in mineral deposits 2001-04-24
6109699 Tow line equipped remote mining machine and method 2000-08-29
5911300 Flexible mobile conveyor with multipivotal linkage 1999-06-15
5882148 Apparatus for yielding support of rock 1999-03-16
5836658 Method and apparatus for boring and shearing of rocks 1998-11-17
5582465 Method and apparatus for mining inclined mineral deposits 1996-12-10
5528578 Digital information recording by burning conductive spots with electrical pulses in an insulating layer or a recording medium 1996-06-18
5513903 Method and apparatus for developing shafts using small diameter shafts 1996-05-07
5221122 Multipurpose mining machine 1993-06-22
5190134 Flexible mobile bridge conveyor 1993-03-02
5018389 Rock-stress measuring method 1991-05-28
4986413 Conveyor belt inversion device 1991-01-22
4976571 Anchor device for securing rock bolts Anil Mahyera 1990-12-11
4951801 Articulated mobile conveyor apparatus 1990-08-28
4860878 Collapsible conveyor support structure/carrier Donald R. Skuce 1989-08-29
4842130 Belt bender 1989-06-27
4820095 Anchor device for securing rock bolts 1989-04-11
4818144 Flood isolation dam 1989-04-04
4784522 Method and apparatus for effecting high pressure isolation of liquids 1988-11-15
4771880 Belt storage unit 1988-09-20
4749078 Roof mounted conveyor idler frame 1988-06-07