Assignee
KEYSTONE TOWER SYSTEMS INC
US·30 granted patents·2 pending applications·59 citations·filing 2012–2024
Top patents by PatentIndex Score
32 records- 0195US9302303B2Tapered structure constructionKEYSTONE TOWER SYSTEMS INC·Filed 2012·Granted Apr 5, 2016·6 cites·16 claims
- 0294US9475153B2Tapered spiral welded structureKEYSTONE TOWER SYSTEMS INC·Filed 2014·Granted Oct 25, 2016·11 cites·12 claims
- 0392US10486212B2Sheet transitioning in spiral formed structuresKEYSTONE TOWER SYSTEMS INC·Filed 2018·Granted Nov 26, 2019·5 cites·14 claims
- 0492US10201841B2Sheet transitioning in spiral formed structuresKEYSTONE TOWER SYSTEMS INC·Filed 2017·Granted Feb 12, 2019·5 cites·20 claims
- 0590US10807136B2Sheet transitioning in spiral formed structuresKEYSTONE TOWER SYSTEMS INC·Filed 2019·Granted Oct 20, 2020·3 cites·15 claims
- 0689US11185952B2Flange fitting for tubular structuresKEYSTONE TOWER SYSTEMS INC·Filed 2019·Granted Nov 30, 2021·5 cites·18 claims
- 0788US11731181B2Spiral formingKEYSTONE TOWER SYSTEMS INC·Filed 2021·Granted Aug 22, 2023·1 cites·12 claims
- 0888US10189064B2Control system and method for tapered structure constructionKEYSTONE TOWER SYSTEMS INC·Filed 2014·Granted Jan 29, 2019·6 cites·12 claims
- 0987US11571727B2Tapered structure constructionKEYSTONE TOWER SYSTEMS INC·Filed 2021·Granted Feb 7, 2023·1 cites·16 claims
- 1087US11213872B2Spiral formingKEYSTONE TOWER SYSTEMS INC·Filed 2019·Granted Jan 4, 2022·3 cites·11 claims
- 1185US11686155B2Wind turbine tower attachmentKEYSTONE TOWER SYSTEMS INC·Filed 2020·Granted Jun 27, 2023·2 cites·17 claims
- 1283US12529265B2Wind turbine tower attachmentKEYSTONE TOWER SYSTEMS INC·Filed 2023·Granted Jan 20, 2026·0 cites·10 claims
- 1382US12226813B2Tapered structure constructionKEYSTONE TOWER SYSTEMS INC·Filed 2023·Granted Feb 18, 2025·0 cites·16 claims
- 1481US11834856B2Tapered spiral welded structureKEYSTONE TOWER SYSTEMS INC·Filed 2020·Granted Dec 5, 2023·1 cites·9 claims
- 1580US10493509B2Spiral formingKEYSTONE TOWER SYSTEMS INC·Filed 2016·Granted Dec 3, 2019·2 cites·18 claims
- 1680US2024082899A1Spiral formingKEYSTONE TOWER SYSTEMS INC·Filed 2023·Application pending·0 cites
- 1779US10974298B2Tapered structure constructionKEYSTONE TOWER SYSTEMS INC·Filed 2017·Granted Apr 13, 2021·1 cites·13 claims
- 1878US10717122B2Cylindrical tube formationKEYSTONE TOWER SYSTEMS INC·Filed 2018·Granted Jul 21, 2020·1 cites·14 claims
- 1978US10060149B2Tapered spiral welded structureKEYSTONE TOWER SYSTEMS INC·Filed 2016·Granted Aug 28, 2018·1 cites·11 claims
- 2077US2025010411A1Flange fitting for tubular structuresKEYSTONE TOWER SYSTEMS INC·Filed 2024·Application pending·0 cites
- 2176US12257616B2Control system and method for tapered structure constructionKEYSTONE TOWER SYSTEMS INC·Filed 2022·Granted Mar 25, 2025·0 cites·13 claims
- 2275US11364527B2Control system and method for tapered structure constructionKEYSTONE TOWER SYSTEMS INC·Filed 2018·Granted Jun 21, 2022·1 cites·18 claims
- 2374US12240025B2Sheet transitioning in spiral formed structuresKEYSTONE TOWER SYSTEMS INC·Filed 2022·Granted Mar 4, 2025·0 cites·7 claims
- 2474US10195653B2Tapered structure constructionKEYSTONE TOWER SYSTEMS INC·Filed 2015·Granted Feb 5, 2019·1 cites·14 claims
- 2573US10626672B2Wind turbine tower attachmentKEYSTONE TOWER SYSTEMS INC·Filed 2018·Granted Apr 21, 2020·1 cites·14 claims
- 2672US11529661B2Sheet transitioning in spiral formed structuresKEYSTONE TOWER SYSTEMS INC·Filed 2020·Granted Dec 20, 2022·0 cites·13 claims
- 2771US11883907B2Flange fitting for tubular structuresKEYSTONE TOWER SYSTEMS INC·Filed 2021·Granted Jan 30, 2024·0 cites·16 claims
- 2871US11559832B2Cylindrical tube formationKEYSTONE TOWER SYSTEMS INC·Filed 2020·Granted Jan 24, 2023·0 cites·18 claims
- 2971US10150150B2Cylindrical tube formationKEYSTONE TOWER SYSTEMS INC·Filed 2018·Granted Dec 11, 2018·1 cites·20 claims
- 3070US10895088B2Tapered spiral welded structureKEYSTONE TOWER SYSTEMS INC·Filed 2018·Granted Jan 19, 2021·1 cites·17 claims
- 3157US12297951B2Tubular structure reinforcingKEYSTONE TOWER SYSTEMS INC·Filed 2021·Granted May 13, 2025·0 cites·14 claims
- 3246US11577292B2Tube stiffeningKEYSTONE TOWER SYSTEMS INC·Filed 2018·Granted Feb 14, 2023·0 cites·20 claims
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