Growing community of inventors

Hong Kong, China

Christopher James Mccaughan Hay

Average Co-Inventor Count = 1.20

ph-index = 16

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 639

Christopher James Mccaughan HayMark Armstrong (5 patents)Christopher James Mccaughan HayDonald Espie Hay (3 patents)Christopher James Mccaughan HayGregory Clegg Spooner (2 patents)Christopher James Mccaughan HayEdwin Chan (1 patent)Christopher James Mccaughan HayJeff Lai (1 patent)Christopher James Mccaughan HayCaroline Maree Francis (1 patent)Christopher James Mccaughan HayBenjo Lapuebla Manuel (1 patent)Christopher James Mccaughan HayChristopher James Mccaughan Hay (37 patents)Mark ArmstrongMark Armstrong (9 patents)Donald Espie HayDonald Espie Hay (20 patents)Gregory Clegg SpoonerGregory Clegg Spooner (31 patents)Edwin ChanEdwin Chan (31 patents)Jeff LaiJeff Lai (2 patents)Caroline Maree FrancisCaroline Maree Francis (1 patent)Benjo Lapuebla ManuelBenjo Lapuebla Manuel (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hayco Manufacturing Limited (37 from 115 patents)


37 patents:

1. 8196249 - Cleaning implement

2. D559490 - Handle for cleaning implement

3. D555316 - Dustpan

4. D548977 - Cleaning implement

5. D548976 - Scraper with brush

6. D547512 - Cleaning implement

7. 7213998 - Water-supplying cleaning head

8. D540543 - Cleaning implement

9. D540043 - Cleaning implement

10. D533324 - Cleaning implement

11. D531367 - Cleaning implement

12. D527189 - Handle with base for cleaning implement

13. D524548 - Cleaning implement

14. D521249 - Handle for a cleaning implement

15. D519354 - Valve unit

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as of
12/7/2025
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