E01B 3/30

Technology

Patent/Pub #	Title	Filing Date	Issue/Publication Date	Patent Owner
2024/0229,363	Hollow sleeper	Oct 19, 23	Jul 11, 24	SCHWIHAG AG
2024/0133,124	Hollow sleeper	Oct 18, 23	Apr 25, 24	SCHWIHAG AG
2023/0250,592	RAILROAD SLEEPER AND PROCESS FOR MANUFACTURING A RAILROAD SLEEPER	Apr 13, 23	Aug 10, 23	BRASKEM S.A.
2021/0180,261	Railroad sleeper and process for manufacturing a railroad sleeper	Jun 03, 20	Jun 17, 21	BRASKEM SA
2012/0325,921	SLEEPER FOR SUPPORTING RAILS	Aug 22, 12	Dec 27, 12	SCHENCK PROCESS GMBH

Patent Searching
Technology Searching
Owner and Inventor Searching
Patent Analytics
Owner Analytics
Attorney Analytics
Inventor Analytics
Technology Analytics
Mobile Searching
Tagging
Advanced Patent Analytics
Advanced Owner Analytics
Mobile Portfolio/Analytics
Detailed Attorney Information
Prosecution analytics
Pre-publication Data
Monthly PAIR Information and Watches
Number of patents in all portfolios	100 (maximum)	1000 (maximum)	2000 (maximum)	Unlimited
Follows in all categories (Watch)	10 (maximum)	50 (maximum)	500 (maximum)	Unlimited
Maximum number of portfolios	5 (maximum)	10 (maximum)	100 (maximum)	Unlimited
Maximum number of comparisons	1 (maximum)	5 (maximum)	20 (maximum)	Unlimited

Patent Searching
Technology Searching
Owner and Inventor Searching
Patent Analytics
Owner Analytics
Attorney Analytics
Inventor Analytics
Technology Analytics
Mobile Searching
Tagging
Advanced Patent Analytics
Advanced Owner Analytics
Mobile Portfolio/Analytics
Detailed Attorney Information
Prosecution analytics
Pre-publication Data
Monthly PAIR Information and Watches
Number of patents in all portfolios	100 (maximum)	1000 (maximum)	2000 (maximum)	Unlimited
Watches in all categories (Watch)	10 (maximum)	50 (maximum)	500 (maximum)	Unlimited
Maximum number of portfolios	5 (maximum)	10 (maximum)	100 (maximum)	Unlimited
Maximum number of comparisons	1 (maximum)	5 (maximum)	20 (maximum)	Unlimited

Patent Searching
Technology Searching
Owner and Inventor Searching
Patent Analytics
Owner Analytics
Attorney Analytics
Inventor Analytics
Technology Analytics
Mobile Searching
Tagging
Advanced Patent Analytics
Advanced Owner Analytics
Mobile Portfolio/Analytics
Detailed Attorney Information
Prosecution analytics
Pre-publication Data
Monthly PAIR Information and Watches
Number of patents in all portfolios	100 (maximum)	1000 (maximum)	2000 (maximum)	Unlimited
Follows in all categories (Watch)	10 (maximum)	50 (maximum)	500 (maximum)	Unlimited
Maximum number of portfolios	5 (maximum)	10 (maximum)	100 (maximum)	Unlimited
Maximum number of comparisons	1 (maximum)	5 (maximum)	20 (maximum)	Unlimited