Thanks to jameshart's list, and the search you provided I found:

- Windows: No Microsoft needed https://tsdr.uspto.gov/#caseNumber=74090419&caseSearchType=U... - Microsoft Teams: Needs Microsoft https://tsdr.uspto.gov/#caseNumber=87687687&caseSearchType=U... - Nothing for Word - Microsoft 365: https://tsdr.uspto.gov/#caseNumber=87640393&caseSearchType=U... - No Microsoft Office, but Office 365: https://tsdr.uspto.gov/#caseNumber=85387679&caseSearchType=U...