Class E04F : FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
Subclass 11/00: Stairways, ramps, or like structures (mounting or marking-off stairways E04F 21/26; of temporary construction E04G 27/00); Balustrades; Handrails (ladders permanently attached to fixed structures E06C 9/00)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12252886 | Floating modular stair system | Oct 04, 21 | Mar 18, 25 | PrimeSource Building Products, Inc. |
| 12158006 | Pet ramp apparatus | Feb 25, 22 | Dec 03, 24 | CARLSON PET PRODUCTS, INC. |
| 12000151 | Movable platform for a path | Jan 25, 21 | Jun 04, 24 | Universal City Studios LLC |
| 11834838 | Wheelchair ramp | May 06, 20 | Dec 05, 23 | Not available |
| 11821213 | Block-type prefabricated ramp | Nov 23, 21 | Nov 21, 23 | HUMAN TECHNOLOGY & COMPLEX CO., LTD |
| 11788299 | Wheelchair ramps, hand railings, and modular accessibility systems incorporating the same | Jan 26, 18 | Oct 17, 23 | Not available |
| 11718998 | Stair stringer | Aug 18, 21 | Aug 08, 23 | MIRO Industries, Inc. |
| 11585097 | Wheelchair ramp system using structrually insulated panel (SIPs) | Oct 13, 20 | Feb 21, 23 | Heated Ramps, LLC |
| 11585096 | Ultra-light freestanding pet ramp | Nov 21, 19 | Feb 21, 23 | Vermont Juvenile Furniture Mfg. Inc. |
| 11565776 | Hinge system and a portable gangway using the hinge system | Feb 22, 19 | Jan 31, 23 | MMG Welding Ltd. |
| 11560719 | Elbow assembly for ramp and platform assembly | Jul 11, 19 | Jan 24, 23 | Homecare Products Inc. |
| 11541254 | Emergency slide system | Apr 20, 20 | Jan 03, 23 | Not available |
| 11440754 | Ramp component system | Aug 23, 19 | Sep 13, 22 | Not available |
| 11406184 | Snap lock system, method and use for connecting construction elements | Dec 21, 18 | Aug 09, 22 | Humeneq AS |
| 11396755 | Handrail system for ramp assembly and handrail adaptor having angled interface | Oct 23, 18 | Jul 26, 22 | Homecare Products, Inc. |
| 11352797 | Platform transition and interface for the same | Jun 12, 19 | Jun 07, 22 | Homecare Products, Inc. |
| 11280093 | Forming a transition between two surfaces of different elevation | Nov 01, 19 | Mar 22, 22 | EZ Flex LLC |
| 11268276 | Modular deck apparatus | Mar 20, 20 | Mar 08, 22 | Oliver Technologies, Inc. |
| 11185053 | Walkway and walkway system for an aviary | Jul 06, 16 | Nov 30, 21 | Rose Acre Farms Inc. |
| 11111091 | Ramp structure | Mar 15, 19 | Sep 07, 21 | Enable Access (Holdings) Limited |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0052,067 | STAIRCASE WHEELCHAIR RAMP ASSEMBLY | Aug 10, 23 | Feb 13, 25 | Not available |
| 2024/0376,719 | MODULAR RAMP WITH HANDRAILS AND LOCKING ASSEMBLY | May 13, 24 | Nov 14, 24 | Not available |
| 2024/0175,268 | WHEELCHAIR RAMP | Dec 04, 23 | May 30, 24 | Not available |
| 2024/0117,637 | STAIR CLIMBING AID (RAMP) FOR SELF-MOVING VACUUM ROBOTS | Oct 08, 22 | Apr 11, 24 | Not available |
| 2024/0044,143 | Foldable Ramp System | Aug 03, 23 | Feb 08, 24 | Not available |
| 2024/0003,138 | WHEELCHAIR RAMPS, HAND RAILINGS, AND MODULAR ACCESSIBILITY SYSTEMS INCORPORATING THE SAME | Sep 19, 23 | Jan 04, 24 | Not available |
| 2023/0235,565 | TRAVELING ASSISTANCE TOOL FOR WHEELCHAIR | Jun 11, 21 | Jul 27, 23 | Not available |
| 2023/0220,676 | PORTABLE RAMP | Jun 11, 21 | Jul 13, 23 | Not available |
| 2023/0212,858 | RAMPS TO FACILITATE CROSSING THRESHOLDS OF SLIDING DOORS | Dec 29, 22 | Jul 06, 23 | Not available |
| 2023/0193,633 | HEATED WHEELCHAIR RAMP SYSTEM | Feb 16, 23 | Jun 22, 23 | Not available |
| 2023/0036,125 | DEPLOYMENT MECHANSIM FOR A BARIATRIC RAMP | Jul 27, 22 | Feb 02, 23 | SG Technical Systems Ltd |
| 2023/0035,239 | SERVER RAMP | Jul 27, 22 | Feb 02, 23 | PHS West, LLC |
| 2022/0412,097 | ASCENDING MECHANISED ACCESS RAMP (A-MAR) | Sep 28, 20 | Dec 29, 22 | Not available |
| 2022/0381,036 | Rubber Wheelchair Access Ramp | Nov 05, 21 | Dec 01, 22 | Not available |
| 2022/0251,848 | ADJUSTABLE PET STAIR RAMP | Feb 11, 21 | Aug 11, 22 | Not available |
| 2022/0235,556 | STAIR TRANSPORT DEVICE | Jan 28, 21 | Jul 28, 22 | Not available |
| 2022/0030,835 | WALKWAY AND WALKWAY SYSTEM FOR AN AVIARY | Oct 19, 21 | Feb 03, 22 | Rose Acre Farms, Inc. |
| 2022/0025,655 | DOOR MAT | Jul 23, 21 | Jan 27, 22 | Not available |
| 2022/0010,557 | FOLDABLE WHEELCHAIR RAMP WITH HIGH STABILITY | Oct 08, 20 | Jan 13, 22 | ZHEJIANG ENZE VEHICLE CO., LTD. |
| 2021/0396,016 | WATERSLIDE DOG LADDER | Jun 17, 20 | Dec 23, 21 | Not available |
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