Physical Layer & Interface Optimization

Enhancements to the physical and data link layers of network communication, focusing on hardware components, signal integrity, power efficiency, and efficient data transfer mechanisms for specific interfaces and buses.

6,624 US filings from 910 companies since 2023 · 2023: 2,057 · 2024: 1,879 · 2025: 1,927 · 2026 YTD: 761

Routing, Switching & QoS

Top companies

Ranked by filings in this theme since 2023. 2026 is partial.

#	Company	Since 2023	2023	2024	2025	2026 YTD	YoY
1	Huawei Technologies Co., Ltd.	536	203	159	124	50	-22.0%
2	Cisco Technology, Inc.	402	95	115	137	55	+19.1%
3	INTEL CORPORATION	356	115	98	119	24	+21.4%
4	Mellanox Technologies, Ltd.	189	48	49	63	29	+28.6%
5	Juniper Networks, Inc.	144	47	40	42	15	+5.0%
6	DELL PRODUCTS L.P.	144	33	42	46	23	+9.5%
7	Hewlett Packard Enterprise Development LP	142	32	52	39	19	-25.0%
8	Marvell Asia Pte Ltd	137	43	40	40	14	0.0%
9	QUALCOMM Incorporated	127	28	41	41	17	0.0%
10	Arista Networks, Inc.	111	24	30	38	19	+26.7%
11	SAMSUNG ELECTRONICS CO., LTD.	111	33	29	37	12	+27.6%
12	Microsoft Technology Licensing, LLC	91	33	26	21	11	-19.2%
13	International Business Machines Corporation	84	33	20	21	10	+5.0%
14	SK hynix Inc.	79	26	21	27	5	+28.6%
15	ZTE Corporation	78	22	27	23	6	-14.8%
16	VMware LLC	76	·	26	44	6	+69.2%
17	TEXAS INSTRUMENTS INCORPORATED	73	28	21	20	4	-4.8%
18	Telefonaktiebolaget LM Ericsson (publ)	72	18	22	24	8	+9.1%
19	VMware, Inc.	69	61	6	2	·	-66.7%
20	Ciena Corporation	65	22	19	16	8	-15.8%
21	Nippon Telegraph and Telephone Corporation	65	28	27	9	1	-66.7%
22	SUZHOU METABRAIN INTELLIGENT TECHNOLOGY CO., LTD.	61	·	9	29	23	+222.2%
23	Oracle International Corporation	60	18	21	17	4	-19.0%
24	Avago Technologies International Sales Pte. Limited	57	17	17	11	12	-35.3%
25	XILINX, INC.	56	21	16	17	2	+6.2%