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USPTO Patent Rankings Data through Dec 31, 2025
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Hermann W. Ahls — 12 Patents

OEOtis Elevator: 12 patents #121 of 1,840Top 7%
Premnitz, DE: #1 of 7 inventorsTop 15%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Hermann W. Ahls has been granted 12 US patents while listed as an inventor at Otis Elevator. The first was granted in 1992 and the most recent in September 1998. Hermann W. Ahls ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Hermann W. Ahls in Premnitz, DE.

Patents per Year

Patents granted per year, 1992 to 1998Bar chart with a peak of 7 patents in 1994.peak 71992: 1 patents19921994: 7 patents19941995: 1 patents19951996: 1 patents19961998: 2 patents1998

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5806653 Roller assembly for a passenger conveyor step chain Angelika Minta, Birgit Glogau 1998-09-15 $6,891,000
5704464 Passenger sensor for an escalator or moving walk Detlev Abraham, Oliver Stoxen, Dietmar Kruger 1998-01-06 $20,387,000
5542521 Step Platform for an escalator Helmut Meyer, Klaus Blaseck, Udo Schmitting 1996-08-06 $10,792,000
5381881 Step platform for an escalator Helmut Meyer, Klaus Blaseck, Udo Schmitting 1995-01-17 $6,875,000
5372232 Handrail drive pressure chain with soft rollers Michael Kruse, Margarete Solbach 1994-12-13 $3,432,000
5370213 Combplate with a wear resistant coating Michael Kruse 1994-12-06 $8,532,000
5350049 Wear resistant safety coating for people moving device treadplates Michael Kruse, Peter Borchers 1994-09-27 $4,666,000
5341909 Linear wheel escalator handrail drive Alfons Von Herz 1994-08-30 $7,592,000
5325955 Escalator step chain support apparatus Martin Mehlert, Jan G. Harbers 1994-07-05 $9,579,000
5307920 Moving handrail drive Helmut Meyer, Klous Blaseck 1994-05-03 $2,841,000
5293982 Step chain plug-in axle Alfons Von Herz 1994-03-15 $4,981,000
5117960 Linear belt handrail drive Helmut Meyer, Olaf Wurzler 1992-06-02 $2,972,000